You were standing besides Gen, watching unsettled as Senku and Kaseki were preparing to perform surgery on Tsukasa. When Yuzuriha came over, she discovered Mirai was watching you guys by the entrance this whole time. Senku asked her for help from her sewing skills to close Tsukasa's wound.
"Er..." Gen said. "I mean I know there's no way you have anesthetic Senku-chan... Are you seriously going to try to do surgery?"
"Kukukuku!" an large evil grin formed on his face. "Don't underestimate the world's strongest primate! Tsukasa, you can handle this without anesthetic, can't you~?"
"Damn right." he smiled in a similar sinister fashion.
You smiled, glad to see them bonding, but at the same time, a bit unnerved to see them bonding over something like this. Mirai fainted and you asked Kohaku to take care of her, she's a sister too after all, she knew what she must be feeling.
"It's my own body." Tsukasa said after the surgery, when Kaseki and Yuzuriha left. "So I know it better than anyone. Surgery would only buy time, with sepsis, I only have a few days to live."
'Right.' you pursued your lips. 'His lung was punctured after all.'
You shivered, remembering the spear piercing through his chest.
"Yeah, here in this stone world, there's only one way to save you." Senku said. "I'm going to temporarily turn you into stone. We'll take advantage of the healing properties of the de-petrification process, and use it to heal you."
You and Gen's eyes widen.
"Uh, sure..." Gen said. "I understand the theory and all. But the most important part, the turning to stone bit... Do you actually know how to do that?"
"Quit rushing, what are you, an impatient brat? That's right we're about to search."
"But..." you said in a little voice, dumbfounded and worried. "It'll take a lot of time right? How...?"
"Right, it could take years. And by then, he'll be ten billion percent dead." he looked down at him. "That's why before that can happen, Tsukasa... With my own hands, I'm going to kill you."
You felt heart drop as soon as you heard his words. Sadness written all over your face.
"What?!" Gen exclaimed. "What do you mean?!"
"I'm going to freeze you to death," Senku ignored him. "and put you in a literal cold sleep. During that time, I'll find a way to turn you to stone. No matter what it takes, I will bring you back to life." he paused. "I just...have to. Trust me. Let me kill you."
His head was hung down. But you saw the way he clenched his fists, shaking. And the slight crack in his voice broke your heart.
"Of course." Tsukasa's calm voice gave you the final blow. "Either way, if I were to die, I'd want it to be by your hand... And after all, I already killed you once Senku."
"Aaaah that right! You did do that! Kukuku! What a perfect chance for revenge!" he stood up. "Now sit still while I end your life!"
Then he and Gen walked out. Seeing Senku suddenly back to normal, it just made you more crushed.
"Don't look so sad (Y/n). I hate to see you like this." you looked at Tsukasa, smiling at you. "Go help Senku."
You sniffed, and smiled, your eyebrows furrowed.
"Okay."
Building and installing a refrigerator was easier than you thought it would be. Having Senku brand it with his name on it, like he did with every invention he made, made you laugh. You were enjoying this moment of crafting and fun because you knew what happened next was not going to be as lighthearted.
Senku only had to prepare the inside of the fridge with gold wires. Kaseki pushed the others out of the cave.
"Huh? Why are we leaving so suddenly?" Ginrou asked.
"Having to kill his friend with his own hands." he said. "I don't think anyone would want to be seen like that."
You nodded, and followed them.
"(Y/n)." Tsukasa called out. "Can you please stay here?"
You looked at him, you opened your mouth but not knowing what to say. You glanced at Senku. He was just looking at you, waiting for your answer. You quietly sighed, and went to sit beside Tsukasa.
"Of course." you softly said, smiling.
YOU ARE READING
My Own Science (Dr Stone Senku x reader)
Fanfiction[Slight various x reader || following the manga] "There is," Senku said. "one science that I could never master..." he paused and looked at you. "Yours." But you didn't feel that way, you completely disagreed. In this stone world, your talent was b...
