One Second, One Grain (一秒と一粒 Ichi-byō to Hitotsubu) is the 115th chapter of the Dr. Stone manga.
Summary
Having broken open the concrete slab, Kohaku discovers the jar left by Byakuya. However, she accidentally breaks it, alerting the guards to her presence. Taking its contents, she flees the scene, and using the Motor-powered Car, she transports them to Senku and the Science Team. Senku quickly realizes the contents include significant amounts of platinum.
In the past, Byakuya set out to acquire and stockpile platinum in case Senku was ever revived. He continued this for decades, eventually dying during his search.
With the acquisition of platinum, Senku sets off to produce nitric acid, the key component of the Stone Formula.
Characters in Order of Appearance
- Kohaku
- Ruri
- Oarashi
- Senku Ishigami
- Minister Ibara
- Gen Asagiri
- Kaseki
- Soyuz
- Suika
- Byakuya Ishigami (Flashback)
- Darya Nikitina (Flashback)
- Yakov Nikitin (Flashback)
- Connie Lee (Flashback)
- Shamil Volkov (Flashback)
- Lillian Weinberg (Flashback)
Chapter Notes
- Platinum acquired!!
- This chapter hosts the 2nd character poll.
- It is revealed Byakuya was the one who gathered the platinum for Senku.
- Senku reveals he is the child of Byakuya's good friend.
- Approximately 21 years and 5 months after the Petrification, Senku is seen in the school hallway in which he was petrified. Byakuya is approximately in his 60s during this moment.
- Approximately 32 years and 2 months after the Petrification, Byakuya dies. He's approximately in his 70s at the time.
| Prologue Saga | ||
| Chapters | 1 • 2 • 3 • 4 | |
| Episodes | 1 • 2 | |
| Chapters | 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 | |
| Episodes | 3 • 4 • 5 | |
| Ishigami Village Saga | ||
| Chapters | 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 • 26 • 27 • 28 • 29 • 30 • 31 • 32 • 33 | |
| Episodes | 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 | |
| Chapters | 34 • 35 • 36 • 37 • 38 • 39 • 40 | |
| Episodes | 13 • 14• 15 | |
| Chapters | 41 • 42 • 43 • 44 • 45 | |
| Episodes | 16 • 17 | |
| Stone Wars Saga | ||
| Chapters | 46 • 47 • 48 • 49 • 50 | |
| Episodes | 18 • 19 | |
| Chapters | 51 • 52 • 53 • 54 • 55 • 56 • 57 • 58 • 59 • 60 • 61 • 62 • 63 • 64 • 65 • 66 • 67 • 68 • 69 • 70 • 71 • 72 • 73 • 74 • 75 • 76 • 77 • 78 • 79 • 80 • 81 • 82 | |
| Episodes | 20 • 21 • 22 • 23 • 24 | |
| Source of the Petrification Saga | ||
| Chapters | 83 • 84 • 85 • 86 • 87 • 88 • 89 • 90 • 91 • 92 • 93 • 94 • 95 • 96 • 97 • 98 • 99 • 100 | |
| Episodes | ||
| Chapters | 101 • 102 • 103 • 104 • 105 • 106 • 107 • 108 • 109 • 110 • 111 • 112 • 113 • 114 • 115 • 116 • 117 • 118 • 119 • 120 • 121 • 122 • 123 • 124 • 125 • 126 • 127 • 128 • 129 • 130 • 131 • 132 • 133 • 134 • 135 • 136 • 137 • 138 | |
| Episodes | ||
| The Truth of the Petrification Saga | ||
| Chapters | 139 • 140 • 141 • 142 • 143 • 144 • 145 • 146 • 147 • 148 • 149 • 150 • 151 • 152 • 153 • 154 • 155 • 156 • 157 • 158 • 159 • 160 • 161 • 162 • 163 • 164 • 165 • 166 • 167 • 168 • 169 | |
| Episodes | ||
| Chapters | 170 • 171 • 172 • 173 • 174 • 175 • 176 | |
| Episodes | ||
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