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Dr. Stone Wiki


Mirai Shishio[]

Tsukasa finally meets Mirai

Tsukasa and his sister reunited.

Mirai is Tsukasa's beloved younger sister.

Due to an accident, Mirai was in a coma and Tsukasa refused to give up on her. To support her, he took to fighting in MMA matches to keep paying the medical bills that kept her on life support.

Even after thousands of years, Tsukasa still cared about his sister and was hopeful when Senku promised to depetrify her and states it will heal her condition. Tsukasa accepted the deal on the condition of a ceasefire. Tsukasa was extremely happy when she was fully restored and healthy after she woke up from the stone.[1] Their reunion was short-lived, due to Hyoga. Tsukasa suffered a near-fatal wound to protect her. After Hyoga was defeated, Mirai decided to return her brother's loyalty to her and stay by his side after he went into stasis and plans to wait for him.[2]

During his second revival, Mirai shed tears of joy at seeing him on his feet and he patted her on the head.[3]


Tsukasa Empire[]

After being given the revival formula, Tsukasa started to free more people becoming the leader.

The inhabitants were modern humans, who Tsukasa found worthy of being freed. Using his charisma, he led them in surviving the Stone World. He cared for his followers, as he mourned the deaths of allies that died in the raid on Ishigami Village, who were killed by Hyoga.

They were loyal to Tsukasa on agreeing to surrender after Senku bartered with him.

Former Enemies[]

Senku Ishigami[]

Tsukasa and Senku start on good terms. Tsukasa is impressed by Senku's quick explanation while being pursued by a pride of lions. He also admires Senku's mind, claiming that it's the sharpest mind he has ever witnessed.[4] Even when their ideals inevitably clashed and he was forced to kill him, Tsukasa states that had they met under different circumstances, Senku would've been his first friend.[5]

In his fight with Hyoga, along with Senku he reflects on how fun it is to fight on Senku's side and smiles with glee having defeated Hyouga with his friend.

When Senku promised to depetrify him, Tsukasa agreed to let Senku put him in a temporary comatose state until he can heal his condition. After he returned from the Petrification kingdom with the Medusa, he petrified Tsukasa and then revived him, saving his life. Once Tsukasa was fully restored, he agrees to help in the conflict with Whyman.

He also joins the rest of the kingdom of science in adorning hand drawn war paint and reminiscent of scars as a sign of loyalty to Senku.

As he puts his life down for Senku and the rest of Kingdom of Science, he wonders when he began putting so much faith in Senku's and how he entrusted his life to his enemy-made-friend. With a faint, sorrowful smile, Tsukasa embraces his end and entrusts the fate of the world to Senku.[6]

Gen Asagiri[]

Prior to being petrified, they first met at an appearance on a psychological magic show. After the Petrification incident, Gen was de-petrified by Tsukasa Shishio and was shocked to see him again. Ironically, Gen is the kind of person Tsukasa originally wished to not revive, as he is a greedy man who cares only about his own desires. However, Tsukasa was desperate for a brilliant mind like Senku's to help him.

Gen sees Tsukasa as a dictator, who uses his charisma to win over others as he did so with his subjects and found him to be a worse kind of foe.

After Tsukasa's sister was revived and Tsukasa joined Senku, the pair have gotten on better terms. After his second revival, Tsukasa even stated he doesn't regret reviving Gen, something the mentalist smiled at.[7]


Hyoga is specifically revived for his skill in weaponry and like other soldiers was probably picked out by Minami upon Tsukasa's request, there is no hint as to either of them personally knowing Hyoga before the petrification.

After he is revived, Hyoga becomes one of Tsukasa's commanding officers and Tsukasa sends him to track down the Ishigami Village and Senku. As noted by Gen, the pair are in agreement with each other on how to deal with humanity's revival and their combined skills make for a very deadly team. However it's quite evident from very early on that Hyoga's acts of violence are rooted on plain malice and he does not share Tsukasa's ideals. Ukyo even correctly predicts that their agreement is only surface level and the differences in their worldviews will inevitably lead them to clash if left to their own devices.[8]

After Tsukasa surrendered to Senku and got his sister back, Hyoga betrayed him, stating he waited for an opportune moment when Tsukasa was defenseless and left him severely wounded. Tsukasa would have died, had Senku not froze and later petrified him.

Soon Tsukasa realized Hyoga was once more needed to train the warriors in weaponry. To this end, he asked Senku to revive Hyoga, believing that he was better suited. Tsukasa appeared to still hold a grudge against him for the attempt on his life but seemingly put it aside for humanity's future. Hyoga appeared angry to see Tsukasa on his feet, though agreed to comply.[9]

Despite the latter previously attempting to kill him, Tsukasa and Hyoga were able to fight together against Maya Biggs and accomplish their goals. Tsukasa sadly lamented on Hyoga's fate after he was gunned down by Stanley Snyder.[6]

When he was revived seven years later, Tsukasa asked about Hyoga and wondered if he could be revived because of how he fell in battle. Tsukasa was amazed when Hyoga was revived with all his injuries healed. Tsukasa later confided in Senku that Hyoga's revival confirmed the Petrification, negates even death.[10]

Maya Biggs[]

Maya going all out

Maya going all out against Tsukasa.

Tsukasa and Maya are both MMA champions and were enemies because of their opposing sides.

Tsukasa realized Maya was onto them, when she spotted them hiding and Tsukasa realized it was time to battle.

He impeded Maya after the latter attempted to crush Kohaku with a large tree. Upon learning that he was a MMA champion from Japan, an excited Maya targeted Tsukasa and went all out against him. Despite her launching furious attacks against him, Tsukasa was unfazed but mentions that she was first to push him to the furthest in battle, before knocking her down in a single blow. [6]


Minami Hokutozai[]

She was a fan of his fighting reputation prior to the petrification.

Minami became a loyal member of his empire, with him showing her the same kindness he showed his other followers.

It appears Minami has feelings for him, as when Tsukasa is revived she chooses to let him reunite with his sister first. She is pushed into talking to him by Ruri and nervously greets him while blushing heavily.[3] He has yet to show any signs of reciprocating. However, he does seem to have respect for her, considering he remembered to revive her in order to find people he felt "worthy" of revival and refers to her as "a valuable communicator among those I chose to revive", which implies strong faith in her networking and information skills. [11]


Tsukasa vs Matsukaze

Tsukasa overwhelms Matsukaze

As fellow warriors, Matsukaze and Tsukasa respect each other.

They meet after his second revival, Matsukaze was amazed that Tsukasa already knew there was a situation after his revival. Matsukaze could tell Tsukasa was a strong warrior and requested a sparring match, which the latter accepted. In the end, Matsukaze was defeated and surrendered, while left in awe at Tsukasa's strength. In return, Tsukasa acknowledges how strong Matsukaze could be in the future if he is given training in modern martial arts.[3]

During the voyage to America, Tsukasa was sullen at hearing Matsukaze's past before an inebriated Matsukaze requested that he trained him. Although Matsukaze apologized for overstepping, Tsukasa agreed to this, leading to Hyoga, Homura, and Moz being revived.[12]

While stationed in Superalloy City, Tsukasa was confident that he and Matsukaze are more than capable of keeping watch over Xeno Houston Wingfield.


The two are initially expected to clash due to their chasm between their upbringings. Minami especially freaks out when Tsukasa first encounters Ryusui promising prize money, a reward to whomever spots land first while they try to reach America, and escorts him off the premises. She then scolds him to stay away from Tsukasa as the two would be like 'cats and dogs' were they to interact, because of their ideological differences. Ryusui then confesses to love her, but then turns that confession to a more broad love letter to women and men (which includes Tsukasa). He also states that he only sees money as a motivational tool that unites people other than for control, which an overhearing Tsukasa appears to be content with.[7] They two don't particularly interact with each other since that event, but the few times they do there doesn't seem to be any overarching tension between them at all. Interestingly, Tsukasa and Ryusui are very similar in their roles despite their apparent differences, both taking up leadership of their respective teams during the first America arc and even managing to spot Stanley ahead of time.

Later in the Moon Mission arc, they both step down to allow better candidates to take their spot.


  1. Dr. Stone Manga: Chapter 79
  2. Dr. Stone Manga: Chapter 80
  3. 3.0 3.1 3.2 Dr. Stone Manga: Chapter 141
  4. Dr. Stone Manga: Chapter 4
  5. Dr. Stone Manga: Chapter 10
  6. 6.0 6.1 6.2 Dr. Stone Manga: Chapter 188
  7. 7.0 7.1 Dr. Stone Manga: Chapter 142
  8. Dr. Stone Manga: Chapter 74, Page 22
  9. Dr. Stone Manga: Chapter 146, Page Tsukasa watches Senku revives Hyoga.
  10. Dr. Stone Manga: Chapter 197
  11. Dr. Stone Manga: Chapter 83
  12. Dr. Stone Manga: Chapter 146