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|affiliation = [[Empire of Might]] (formerly) <br> [[Kingdom of Science]]
 
|affiliation = [[Empire of Might]] (formerly) <br> [[Kingdom of Science]]
 
|mangadebut = [[Chapter 1]] (Petrified) <br> [[Chapter 4]] (Revived)
 
|mangadebut = [[Chapter 1]] (Petrified) <br> [[Chapter 4]] (Revived)
|animedebut = [[Episode 1]] (Cameo) <br> [[Episode 2]]
+
|animedebut = [[Episode 1]] (Petrified) <br> [[Episode 2]] (Revived)
|japvoice = [[Wikipedia:Yuichi Nakamura (voice actor)|Yuichi Nakamura]]
+
|japvoice = [[Wikipedia:Yuichi Nakamura (voice actor)|Yuichi Nakamura]]<br>[[Wikipedia:Yuka Terasaki|Yuka Terasaki]] (Young)
|engvoice = [[Wikipedia:Ian Sinclair (voice actor)|Ian Sinclair]]
+
|engvoice = [[Wikipedia:Ian Sinclair (voice actor)|Ian Sinclair]]<br/>[[Wikipedia:Apphia Yu|Apphia Yu]] (Young)
 
|imagegallery = Yes
 
|imagegallery = Yes
|caption = Tsukasa (Anime)
+
|caption =
 
}}
 
}}
{{Nihongo|'''Tsukasa Shishio'''|獅子王司|Shishiō Tsukasa}} is the primary antagonist of the first 82 chapters of '''[[Dr. Stone (Manga)|Dr. Stone]]. '''
+
{{Nihongo|'''Tsukasa Shishio'''|獅子王司|Shishiō Tsukasa}} is the primary antagonist of the first several arcs of '''[[Dr. Stone (Manga)|Dr. Stone]]. '''
   
 
His goal is to thin out the human population to create a new world without modern technology, saying that adults and how humanity evolved caused them to become evil.
 
His goal is to thin out the human population to create a new world without modern technology, saying that adults and how humanity evolved caused them to become evil.
   
Despite his claims that no threat would come after Senku and Taiju, which proved ironic<sup><ref>''Dr. Stone'': [[Chapter 3]], Page 19</ref></sup>, Tsukasa became one of the biggest obstacles to Senku's [[Kingdom of Science]] and restoring humanity as a whole in general.
+
Despite his claims that no threat would come after [[Senku Ishigami|Senku]] and [[Taiju Oki|Taiju]], which proved ironic<sup><ref>''Dr. Stone'': [[Chapter 3]], Page 19</ref></sup>, Tsukasa became one of the biggest obstacles to Senku's [[Kingdom of Science]] and restoring humanity as a whole in general.
   
 
==Appearance==
 
==Appearance==
Tsukasa is a tall and muscular young man with brown hair and pale skin. His height is estimated to be somewhere around 6'8", towering over the rest of the cast. He is stated by Boichi that he's the tallest out of the cast.
+
Tsukasa is a tall and muscular young man with wild brown hair that he has been growing since childhood with bits of stone near the ends, and pale skin. He has an androgynous face, and is stated to be handsome by [[Minami|Minami Hokutozai]]. His height is estimated to be somewhere around 203.8 cm/6'8", making him the tallest out of the cast, according to [[Boichi]].
   
He has three stone markings; one across his face that cuts across his right eye, another etched deep into his left one from the corner of his eyelid all the way down across his nose and ends at the bottom of his jaw on the right, and the other being stretched across from his left shoulder over his chest and stopping at his upper abdomen.
+
He has three stone markings: one across his face that cuts across his right eye, another etched deep into his left one from the corner of his eyelid all the way down across his nose and ends at the bottom of his jaw on the right, and the third being stretched across from his left shoulder over his chest and stopping at his upper abdomen.
   
After years of MMA fighting, Tsukasa gained permanently swollen knuckles found on his index finger, middle finger, and ring finger. Before humanity was petrified, Tsukasa had unruly hair he’s been growing out since he was little. Post-petrification, he’s kept remnants of stone on the tips of his hair and has a shaved undercut with a slit at the sides, complimenting his stone markings across his eyes.
+
After years of MMA fighting, Tsukasa gained permanently swollen knuckles on his index finger, middle finger, and ring finger.
   
His initial outfit starts off with a red yukata made from a lion’s remains he ended up killing to protect Senku and Taiju. He used its pelt as a coat that he wore around or draped across his shoulders. He wears no shoes. After chapter 78, he wears a cream pelt shirt with his torn yukata as a skirt.
+
His initial outfit is a crude red yukata and cloak made from a lion that he killed to protect Senku and Taiju. He used its pelt as a coat that he wore around or draped across his shoulders. He wears no shoes. Once he meets Senku after a year after believing he had killed him, he wears a cream pelt shirt with his torn yukata as a skirt.
 
===Gallery===
 
<gallery hideaddbutton="true">
 
Tsukasa Shishio (Anime).png|Tsukasa’s Full Body in the Anime.
 
</gallery>
 
   
  +
===<nowiki/>===
 
==Personality==
 
==Personality==
Tsukasa is essentially violent but extremely careful and aware of his actions. He is a very kind, thoughtful, and polite man outside of his pessimistic ideals towards humanity. He offers help in the beginning to Senku and Taiju after they revive him and becomes their hunter for food, using his skills as a prominent athlete to aid them. It’s revealed later that Tsukasa plans to purge humanity and thinks Senku will go along with him, but instead Senku rejects him. After this point, Tsukasa becomes fairly determined in carrying out his plans even to the point of leaving their group. He’s confessed to Senku that he doesn’t care about anyone but himself, though in the latter half of the story it’s revealed that Tsukasa loves his sister Mirai more than anything in the world and ''that'' is where his resilience comes from, so he can save her.
+
Tsukasa is essentially violent, but extremely careful and aware of his actions. He is a very kind, thoughtful, and polite man outside of his pessimistic ideals towards humanity. He offers help in the beginning to Senku and Taiju after they revive him and becomes their hunter for food, using his skills as a prominent athlete to aid them. It’s revealed later that Tsukasa plans to purge humanity and thinks Senku will go along with him, but instead Senku rejects him. After this point, Tsukasa becomes fairly determined in carrying out his plans even to the point of leaving their group. He’s confessed to Senku that he doesn’t care about anyone but himself, though in the latter half of the story, it’s revealed that Tsukasa loves his sister Mirai more than anything in the world and ''that'' is where his resilience comes from, so he can save her.
   
He also reveals that Senku could’ve been his first friend pre-petrification as to which Senku agrees. From this angle, we can assume Tsukasa shuts himself off from others and only focuses on saving his sister. He’s naturally withdrawn outside of his goals. He tends to hate humans who control and manipulate others. By his actions, it is possible to assume that Tsukasa hates any hierarchy or practice of power. His goal is to create a society without technological advancement and he uses any means to achieve that objective; creating his own empire modeled on his twisted views of humanity.
+
He also reveals that Senku could’ve been his first friend pre-petrification, to which Senku agrees. From this angle, we can assume Tsukasa shuts himself off from others and only focuses on saving his sister. He’s naturally withdrawn outside of his goals. He tends to hate humans who control and manipulate others. By his actions, it is possible to assume that Tsukasa hates any hierarchy or practice of power. His goal is to create a society without technological advancement and he uses any means to achieve that objective; creating his own empire modeled on his twisted views of humanity.
   
Though to note, there are many points in the story that explore Tsukasa's psychotic behavior. One instance is when he first breaks a stone statue and has no remorse, continuing to crush more in his wake. He particularly goes after older adults and elderly people, but specifically leaves children alone. This can be related to his personal background and history of being assaulted and abused by those in authority. He also ends up taking Yuzuriha hostage in order to gain the Revival Formula. Tsukasa also by no means wants to resort to fighting or killing but will do so if he feels pressured or his vision for humanity is at stake. This is seen when he ended up killing Senku after sharing a tender moment of wishing they could've met 3,700 years later.
+
Though to note, there are many points in the story that explore Tsukasa's psychotic behavior. One instance is when he first breaks a stone statue and has no remorse, continuing to crush more in his wake. He particularly goes after older adults and elderly people, but specifically leaves children alone. This can be related to his personal background and history of being assaulted and abused by those in authority. He also ends up taking [[Yuzuriha Ogawa|Yuzuriha]] hostage in order to gain the Revival Formula. Tsukasa also by no means wants to resort to fighting or killing, but will do so if he feels pressured or his vision for humanity is at stake. This is seen when he ended up killing Senku after sharing a tender moment of wishing they could've met 3,700 years earlier.
   
 
==Abilities and Skills==
 
==Abilities and Skills==
According to [[Taiju]], Tsukasa has the reputation as '''"The Strongest High School Primate"''' due to his tremendous fighting abilities. The translators note that Shishiou Tsukasa means Lion Ruler.<ref>''Dr. Stone'': [[Chapter 1]], Page 33</ref><ref>''Dr. Stone'': [[Chapter 3]], Page 13</ref>
+
According to Taiju, Tsukasa has the reputation as '''"The Strongest High School Primate"''' due to his tremendous fighting abilities. The translators note that Shishiou Tsukasa means Lion Ruler.<ref>''Dr. Stone'': [[Chapter 1]], Page 33</ref><ref>''Dr. Stone'': [[Chapter 3]], Page 13</ref>
   
 
===Intelligence===
 
===Intelligence===
Tsukasa is a highly intellectual individual. After Senku, it's confirmed by Riichiro Inagaki that Tsukasa would have the highest grades and ties with Chrome in a school setting. Tsukasa also states that Senkuu is the only man he has met that is smarter than him by massive inquiring levels. From this, it's assumed that Tsukasa has spent most of his life alienated from social customs because of his prime intelligence (feeling that no one would understand him) and current predicament with his clinically brain dead sister, Mirai.
+
Tsukasa is a highly intellectual individual. After Senku, it's confirmed by [[Riichiro Inagaki]] that Tsukasa would have the highest grades and ties with [[Chrome]] in a school setting. Tsukasa also states that Senku is the only man he has met who is smarter than him by massive inquiring levels. From this, it's assumed that Tsukasa has spent most of his life alienated from social customs because of his prime intelligence (feeling that no one would understand him) and current predicament with his clinically brain dead sister, Mirai.
   
 
===Physical Abilities===
 
===Physical Abilities===
 
[[File:Tsukasa cutting down a tree.png|thumb|right|225px|Tsukasa cuts down a tree with his stone sword.]]
 
[[File:Tsukasa cutting down a tree.png|thumb|right|225px|Tsukasa cuts down a tree with his stone sword.]]
True to his epithet, Tsukasa possesses an extreme amount of strength and is a highly proficient combatant. He was able to defeat lions and killed the leader of their pride with one punch.<ref>''Dr. Stone'': [[Chapter 3]], Page 18</ref> He also managed to cut down a tree with a single strike from his stone sword, a tree which Senku noted to weigh 1 ton. Tsukasa's speed and reflexes are also equal to his strength. When [[Senku Ishigami|Senku]] fired an arrow with a crossbow, Tsukasa managed to grab the said arrow with his bare hand. Senku later noted that the crossbow fired at 200 kilometers per hour. He was also able to parry all of [[Kohaku]]'s swift attacks during their battle with apparent ease.
+
True to his epithet, Tsukasa possesses an extreme amount of strength. He was able to kill the leader of a pride of lions with a single punch, scaring the rest of the pride off.<ref>''Dr. Stone'': [[Chapter 3]], Page 18</ref> He also managed to cut down a tree with a single strike from his stone sword, a tree which Senku noted to weigh 1 ton.
   
  +
Tsukasa's speed and reflexes are equally extreme. When Senku shot a crossbow bolt at Tsukasa, he simply caught the bolt with his bare hand, with Senku later noting that the bolts moved at 200 km/h. He was also able to easily parry all of [[Kohaku]]'s swift attacks during their quick scuffle.
Tsukasa's fighting style mimics Muay Thai (kickboxing) as he demonstrates doing techniques such as Flying Knee, roundhouse kicking, hurricane kicking. He also portrays elements of Taekwondo with his Spinning Back kicks and other combat techniques. Since Tsukasa is considered the Strongest Primate of the Era, it is implied that he has gone to great lengths to master all forms of mixed martial arts. Currently, he stands undefeated despite participating in official UFC events while he was still in high school.
 
  +
  +
In addition to his enormous strength, speed, and reflexes, Tsukasa is also a tremendously skilled fighter, as he had dominated the UFC while only in high school, and remained undefeated. Tsukasa's fighting style appears to be similar to Muay Thai (kickboxing) demonstrating techniques, such as the Flying Knee, Roundhouse Kick, but also spinning back Kicks from Taekwondo. As a mixed martial artist, it could be inferred that he had mastered many forms of martial arts. Even when mortally wounded, he was able to fight off the spear-wielding [[Hyoga]]. He also shows that he is an able swordsman as well, wielding his stone blade with ease.
   
 
===Equipment===
 
===Equipment===
After being freed from his [[Petrification|petrification]], Tsukasa wielded a primitive-looking spear with a stone blade to hunt for fish. The hilt broke partially later on, effectively making the weapon into a sword. He appears to be highly skilled in wielding it during combat. The stone sword is sturdy enough to cut wood.
+
After being freed from his [[Petrification|petrification]], Tsukasa began wielding a primitive-looking spear with a stone blade to hunt for fish. The shaft broke partially later on, effectively turning the spear into a sword. The stone blade is sturdy enough to cut through trees.
   
 
==History==
 
==History==
When he was younger, Tsukasa was at a beach collecting seashells with the goal of making a necklace consisting of shells so that he could give them to his younger unwell sister, as she loved tales of mermaid princesses.<ref>Dr. Stone Manga — Vol. 1 [[Chapter 4]], Tsukasa alluding his past to Senku. </ref>
+
One day when Tsukasa was young, he went to a beach to collect seashells, intending to use the shells to create a necklace as a gift to his infirm sister, as she loved tales of mermaid princesses.<ref>Dr. Stone Manga — Vol. 1 [[Chapter 4]], Tsukasa alluding his past to Senku. </ref>
   
While choosing seashells for Mirai, an old drunk fisherman came and beat Tsukasa to the point his face was unrecognizable. The fisherman justifies his assault behind him owning a fishing permit in the area and Tsukasa was trespassing. After this event, Tsukasa's sister became clinically brain dead, and required constant life support. From then on, Tsukasa somehow managed to train and find his way to the MMA so he could support his sister's life and defend himself by all means. He ends on becoming a well known MMA fighter nicknamed the "Strongest Highschool Primate" in the combat sport. He becomes so famous that even Taiju, who doesn't watch TV, knows who he is.
+
While collecting seashells for Mirai, an old, drunk fisherman appeared and violently attacked Tsukasa to the point that his face became unrecognizable. The fisherman justified his assault on Tsukasa, claiming that he owned a fishing permit in the area and that Tsukasa's harvesting of seashells was trespassing. This event would greatly affect Tsukasa's view of humanity.
  +
  +
Sometime after this, Mirai became clinically brain dead, and as a result required constant life support. Unable to allow his sister to die, Tsukasa trained and became a top-tier fighter in the MMA in order to financially support his sister's medical care. His combat prowess eventually acquired him the nickname of "Strongest High School Primate", and made him famous enough to be known by even the likes of Taiju, someone who doesn't watch television.
   
 
==Plot==
 
==Plot==
   
 
=== Stone Formula Arc ===
 
=== Stone Formula Arc ===
  +
[[File:Petrified Tsukasa Shishio.png|thumb|Petrified Tsukasa]]He is briefly seen by Taiju in his petrified state. After Senku and Taiju encounter a pride of lions, they are forced to revive Tsukasa in the hopes that he will be able to fend them off. This proves to be successful, as Tsukasa repels the lions by killing one and scaring off the rest. As a result, Tsukasa joins them and for a time forms a trio with them. Tsukasa covers the weaknesses of Taiju and Senku — he defends the group from natural threats, and provides sustenance for them in the form of meat and fish. This allows Taiju and Senku to focus on their respective strengths, bolstering the group's productivity.
He is briefly seen by Taiju. Tsukasa is freed by Senku and [[Taiju Oki|Taiju]] to fight wild animals to save them. He kills a Lion and scares away the rest.
 
[[File:Petrified Tsukasa Shishio.png|thumb|Petrified Tsukasa]]
 
 
 
=== Vs. Tsukasa Arc ===
 
=== Vs. Tsukasa Arc ===
  +
A schism forms between Senku and Tsukasa when the two are alone on the beach. Tsukasa tells Senku the story of how he was assaulted by a fisherman, when he had been collecting seashells for his sister before a surgery of hers. Following the conclusion of the story Tsukasa smashes a petrified man in the water, "killing" him.
He smashes stone people, like the one who hurt his sister. He later takes Yuzuhira hostage. He later attacks Senku and almost kills him.
 
  +
  +
Tsukasa explains to Senku his motivations; he believes that the petrifaction of the whole world is an opportunity for humanity to be cleansed, and for humanity to live in a natural utopia where only the "strong and pure" live, untainted by the corruption of modern technology. Tsukasa tries to turn Senku to his side, by arguing that they should only revive the innocent, young people of the world.
  +
  +
Senku, however, is wholeheartedly against this notion; Senku declares that, with the power of science, he will save all of humanity without — even those who Tsukasa considers evil.
  +
  +
Returning from his trip to harvest nitric acid for the revival of Yuzuriha, Taiju, oblivious to the events that unfolded while he was away, accidentally reveals to Tsukasa the vital component in the Revival Formula. After the three return to their shelter, Senku is forced to give up the location of the nitric acid water to Tsukasa in order to make time to revive Yuzuriha and make a plan against Tsukasa.
  +
  +
Tsukasa makes his way to the cave as directed, and deduces that the miracle ingredient in the cave water is nitric acid. Following this, Tsukasa quickly returns to the shelter. In his wake Tsukasa destroys many petrified humans, leaving a trail of rubble behind him. He returns earlier than expected, much to the shock of Senku.
  +
  +
Taiju realizes what Tsukasa did while he was gone when he sees the rubble of smashed, petrified humans in Tsukasa's hands. Senku sees that Taiju is about to start a fight with Tsukasa over the matter, and attempts to intervene by using a crossbow. Tsukasa, however, manages a superhuman feat; he catches the arrow loosed from the crossbow midair and sends it into the ground. He deals a strong kick towards Taiju's head, sending Taiju flying. Tsukasa is surprised to see Taiju still standing, but is even more surprised that Taiju hadn't tried to attack back. Realizing that Taiju would not fight to protect himself, Tsukasa threatens Yuzuriha, causing Taiju to faint. Tsukasa ends the quarrel and leaves the shelter, now an enemy of Senku, Taiju and Yuzuriha.
  +
  +
Tsukasa returns to the shelter sometime after Senku and company leave, and discovers that the group left the shelter hastily. This, combined with Senku's words regarding the uses of seashells, leads Tsukasa to the conclusion that Senku is planning on creating gunpowder in order to use it as a weapon against him. Tsukasa realizes that Senku will need sulphur in order to produce gunpowder — which can be found in abundance in the hot springs of Hakone.
  +
  +
Tsukasa quickly makes his way over to the hot springs, and finds Senku's location as a result of the smoke coming from the beacon fires he created. On the way to the fire, Tsukasa finds Yuzuriha and takes her hostage. Tsukasa confronts Senku with Yuzuriha in tow, threatening to kill her by placing his spear against her throat. Senku is forced to divulge the recipe for the petrifaction revival formula in order to save Yuzuriha's life.
  +
  +
Tsukasa gives Senku another chance to live — his life will be spared if he promises to cease all his efforts in progressing scientific development. Senku refuses again, telling Tsukasa that such a promise would be impossible for him to make. Following this adamant refusal, Tsukasa instantly kills Senku by crushing his cervical plexus. Yuzuriha and Taiju create a diversion using a rock and gunpowder, fleeing from Tsukasa with Senku's corpse.
   
 
=== Ishigami Village Arc ===
 
=== Ishigami Village Arc ===
He is attack by Kohaku and he traps her under a tree.
+
He is attacked by Kohaku and he traps her under a tree.
   
 
=== Vs. Hyoga Arc ===
 
=== Vs. Hyoga Arc ===
Line 91: Line 105:
   
 
=== Communications Arc ===
 
=== Communications Arc ===
He is betrayed by Hyoga. While he and Senku defeat Hyoga, he is critically injured and put into cryosleep.
+
Tsukasa agrees to a ceasefire with the Kingdom of Science after Senku depetrifies his beloved sister, Mirai. Their peace is short-lived, however; he is soon betrayed by Hyoga. Hyoga attempts to kill Mirai While he and Senku defeat Hyoga, he is critically injured and put into cryosleep.
   
 
==Trivia==
 
==Trivia==

Revision as of 18:58, 29 November 2019

Tsukasa Shishio (獅子王司 Shishiō Tsukasa) is the primary antagonist of the first several arcs of Dr. Stone.

His goal is to thin out the human population to create a new world without modern technology, saying that adults and how humanity evolved caused them to become evil.

Despite his claims that no threat would come after Senku and Taiju, which proved ironic[3], Tsukasa became one of the biggest obstacles to Senku's Kingdom of Science and restoring humanity as a whole in general.

Appearance

Tsukasa is a tall and muscular young man with wild brown hair that he has been growing since childhood with bits of stone near the ends, and pale skin. He has an androgynous face, and is stated to be handsome by Minami Hokutozai. His height is estimated to be somewhere around 203.8 cm/6'8", making him the tallest out of the cast, according to Boichi.

He has three stone markings: one across his face that cuts across his right eye, another etched deep into his left one from the corner of his eyelid all the way down across his nose and ends at the bottom of his jaw on the right, and the third being stretched across from his left shoulder over his chest and stopping at his upper abdomen.

After years of MMA fighting, Tsukasa gained permanently swollen knuckles on his index finger, middle finger, and ring finger.

His initial outfit is a crude red yukata and cloak made from a lion that he killed to protect Senku and Taiju. He used its pelt as a coat that he wore around or draped across his shoulders. He wears no shoes. Once he meets Senku after a year after believing he had killed him, he wears a cream pelt shirt with his torn yukata as a skirt.

Personality

Tsukasa is essentially violent, but extremely careful and aware of his actions. He is a very kind, thoughtful, and polite man outside of his pessimistic ideals towards humanity. He offers help in the beginning to Senku and Taiju after they revive him and becomes their hunter for food, using his skills as a prominent athlete to aid them. It’s revealed later that Tsukasa plans to purge humanity and thinks Senku will go along with him, but instead Senku rejects him. After this point, Tsukasa becomes fairly determined in carrying out his plans even to the point of leaving their group. He’s confessed to Senku that he doesn’t care about anyone but himself, though in the latter half of the story, it’s revealed that Tsukasa loves his sister Mirai more than anything in the world and that is where his resilience comes from, so he can save her.

He also reveals that Senku could’ve been his first friend pre-petrification, to which Senku agrees. From this angle, we can assume Tsukasa shuts himself off from others and only focuses on saving his sister. He’s naturally withdrawn outside of his goals. He tends to hate humans who control and manipulate others. By his actions, it is possible to assume that Tsukasa hates any hierarchy or practice of power. His goal is to create a society without technological advancement and he uses any means to achieve that objective; creating his own empire modeled on his twisted views of humanity.

Though to note, there are many points in the story that explore Tsukasa's psychotic behavior. One instance is when he first breaks a stone statue and has no remorse, continuing to crush more in his wake. He particularly goes after older adults and elderly people, but specifically leaves children alone. This can be related to his personal background and history of being assaulted and abused by those in authority. He also ends up taking Yuzuriha hostage in order to gain the Revival Formula. Tsukasa also by no means wants to resort to fighting or killing, but will do so if he feels pressured or his vision for humanity is at stake. This is seen when he ended up killing Senku after sharing a tender moment of wishing they could've met 3,700 years earlier.

Abilities and Skills

According to Taiju, Tsukasa has the reputation as "The Strongest High School Primate" due to his tremendous fighting abilities. The translators note that Shishiou Tsukasa means Lion Ruler.[4][5]

Intelligence

Tsukasa is a highly intellectual individual. After Senku, it's confirmed by Riichiro Inagaki that Tsukasa would have the highest grades and ties with Chrome in a school setting. Tsukasa also states that Senku is the only man he has met who is smarter than him by massive inquiring levels. From this, it's assumed that Tsukasa has spent most of his life alienated from social customs because of his prime intelligence (feeling that no one would understand him) and current predicament with his clinically brain dead sister, Mirai.

Physical Abilities

Tsukasa cutting down a tree

Tsukasa cuts down a tree with his stone sword.

True to his epithet, Tsukasa possesses an extreme amount of strength. He was able to kill the leader of a pride of lions with a single punch, scaring the rest of the pride off.[6] He also managed to cut down a tree with a single strike from his stone sword, a tree which Senku noted to weigh 1 ton.

Tsukasa's speed and reflexes are equally extreme. When Senku shot a crossbow bolt at Tsukasa, he simply caught the bolt with his bare hand, with Senku later noting that the bolts moved at 200 km/h. He was also able to easily parry all of Kohaku's swift attacks during their quick scuffle.

In addition to his enormous strength, speed, and reflexes, Tsukasa is also a tremendously skilled fighter, as he had dominated the UFC while only in high school, and remained undefeated. Tsukasa's fighting style appears to be similar to Muay Thai (kickboxing) demonstrating techniques, such as the Flying Knee, Roundhouse Kick, but also spinning back Kicks from Taekwondo. As a mixed martial artist, it could be inferred that he had mastered many forms of martial arts. Even when mortally wounded, he was able to fight off the spear-wielding Hyoga. He also shows that he is an able swordsman as well, wielding his stone blade with ease.

Equipment

After being freed from his petrification, Tsukasa began wielding a primitive-looking spear with a stone blade to hunt for fish. The shaft broke partially later on, effectively turning the spear into a sword. The stone blade is sturdy enough to cut through trees.

History

One day when Tsukasa was young, he went to a beach to collect seashells, intending to use the shells to create a necklace as a gift to his infirm sister, as she loved tales of mermaid princesses.[7]

While collecting seashells for Mirai, an old, drunk fisherman appeared and violently attacked Tsukasa to the point that his face became unrecognizable. The fisherman justified his assault on Tsukasa, claiming that he owned a fishing permit in the area and that Tsukasa's harvesting of seashells was trespassing. This event would greatly affect Tsukasa's view of humanity.

Sometime after this, Mirai became clinically brain dead, and as a result required constant life support. Unable to allow his sister to die, Tsukasa trained and became a top-tier fighter in the MMA in order to financially support his sister's medical care. His combat prowess eventually acquired him the nickname of "Strongest High School Primate", and made him famous enough to be known by even the likes of Taiju, someone who doesn't watch television.

Plot

Stone Formula Arc

Petrified Tsukasa Shishio

Petrified Tsukasa

He is briefly seen by Taiju in his petrified state. After Senku and Taiju encounter a pride of lions, they are forced to revive Tsukasa in the hopes that he will be able to fend them off. This proves to be successful, as Tsukasa repels the lions by killing one and scaring off the rest. As a result, Tsukasa joins them and for a time forms a trio with them. Tsukasa covers the weaknesses of Taiju and Senku — he defends the group from natural threats, and provides sustenance for them in the form of meat and fish. This allows Taiju and Senku to focus on their respective strengths, bolstering the group's productivity.

Vs. Tsukasa Arc

A schism forms between Senku and Tsukasa when the two are alone on the beach. Tsukasa tells Senku the story of how he was assaulted by a fisherman, when he had been collecting seashells for his sister before a surgery of hers. Following the conclusion of the story Tsukasa smashes a petrified man in the water, "killing" him.

Tsukasa explains to Senku his motivations; he believes that the petrifaction of the whole world is an opportunity for humanity to be cleansed, and for humanity to live in a natural utopia where only the "strong and pure" live, untainted by the corruption of modern technology. Tsukasa tries to turn Senku to his side, by arguing that they should only revive the innocent, young people of the world.

Senku, however, is wholeheartedly against this notion; Senku declares that, with the power of science, he will save all of humanity without — even those who Tsukasa considers evil.

Returning from his trip to harvest nitric acid for the revival of Yuzuriha, Taiju, oblivious to the events that unfolded while he was away, accidentally reveals to Tsukasa the vital component in the Revival Formula. After the three return to their shelter, Senku is forced to give up the location of the nitric acid water to Tsukasa in order to make time to revive Yuzuriha and make a plan against Tsukasa.

Tsukasa makes his way to the cave as directed, and deduces that the miracle ingredient in the cave water is nitric acid. Following this, Tsukasa quickly returns to the shelter. In his wake Tsukasa destroys many petrified humans, leaving a trail of rubble behind him. He returns earlier than expected, much to the shock of Senku.

Taiju realizes what Tsukasa did while he was gone when he sees the rubble of smashed, petrified humans in Tsukasa's hands. Senku sees that Taiju is about to start a fight with Tsukasa over the matter, and attempts to intervene by using a crossbow. Tsukasa, however, manages a superhuman feat; he catches the arrow loosed from the crossbow midair and sends it into the ground. He deals a strong kick towards Taiju's head, sending Taiju flying. Tsukasa is surprised to see Taiju still standing, but is even more surprised that Taiju hadn't tried to attack back. Realizing that Taiju would not fight to protect himself, Tsukasa threatens Yuzuriha, causing Taiju to faint. Tsukasa ends the quarrel and leaves the shelter, now an enemy of Senku, Taiju and Yuzuriha.

Tsukasa returns to the shelter sometime after Senku and company leave, and discovers that the group left the shelter hastily. This, combined with Senku's words regarding the uses of seashells, leads Tsukasa to the conclusion that Senku is planning on creating gunpowder in order to use it as a weapon against him. Tsukasa realizes that Senku will need sulphur in order to produce gunpowder — which can be found in abundance in the hot springs of Hakone.

Tsukasa quickly makes his way over to the hot springs, and finds Senku's location as a result of the smoke coming from the beacon fires he created. On the way to the fire, Tsukasa finds Yuzuriha and takes her hostage. Tsukasa confronts Senku with Yuzuriha in tow, threatening to kill her by placing his spear against her throat. Senku is forced to divulge the recipe for the petrifaction revival formula in order to save Yuzuriha's life.

Tsukasa gives Senku another chance to live — his life will be spared if he promises to cease all his efforts in progressing scientific development. Senku refuses again, telling Tsukasa that such a promise would be impossible for him to make. Following this adamant refusal, Tsukasa instantly kills Senku by crushing his cervical plexus. Yuzuriha and Taiju create a diversion using a rock and gunpowder, fleeing from Tsukasa with Senku's corpse.

Ishigami Village Arc

He is attacked by Kohaku and he traps her under a tree.

Vs. Hyoga Arc

He learns from Hyoga that Senku is alive.

Communications Arc

Tsukasa agrees to a ceasefire with the Kingdom of Science after Senku depetrifies his beloved sister, Mirai. Their peace is short-lived, however; he is soon betrayed by Hyoga. Hyoga attempts to kill Mirai While he and Senku defeat Hyoga, he is critically injured and put into cryosleep.

Trivia

  • Tsukasa's name is composed of "tsukasa" ( director; official; officer) while his surname Shishio is composed of "shi" ( lion), "shi" ( child) and "ō" ( king) to create Shishiō (Lion Child King).
  • Tsukasa placed 10th in the popularity poll.
  • Tsukasa placed 5th in the Second Popularity poll with 1073 votes.
  1. Dr. Stone Manga — Vol. 1 Chapter 1, Tsukasa Shishio is Petrified along with all of Earths Human Population.
  2. Dr. Stone Manga — Vol. 1 Chapter 3, Tsukasa Shishio is revived by Senku.
  3. Dr. Stone: Chapter 3, Page 19
  4. Dr. Stone: Chapter 1, Page 33
  5. Dr. Stone: Chapter 3, Page 13
  6. Dr. Stone: Chapter 3, Page 18
  7. Dr. Stone Manga — Vol. 1 Chapter 4, Tsukasa alluding his past to Senku.

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