My Own Science (Dr Stone Senku x reader)

Senku-sensei's science class

"Please tell me Senku! Tell me how to make a cure-all!" Chrome shouted. "So I can wipe out Ruri's illness!"
"If it's to cure my sister, I'll help you in any way I can!" Kohaku shouted.
"Let's fucking do this man!" you added, their passion getting to you.

Senku cackled maniacally, with his evil face on. You could tell he was just as exited, thinking about how everyone in the village will totally worship science after he cures that girl.
"I saw that!" Chrome said. "He totally went over some sleazy calculations out in his head before agreeing to help Ruri."
You giggled.
"Is he a gentleman, or a scumbag?" Kohaku asked.
"You know, for a while I was wondering about that myself." you said.
"And?"
"At first I thought a bit of both." you smiled. "But once you get to know him, it's pretty obvious."
"Either way, at least he's simple and logical."

Senku took a stick and started to draw in the dirt.
"I order to cure her, we need..." he took a step back after drawing a capsule. "Antibiotics!"
You gasped.
"Dude! What?!" you said in disbelief, yet couldn't stop smiling.
"They wipe out the bacteria that infest the human body. Science's cure all! Since its discovery in the 20th century, it has gone on to save the lives of hundred of thousands of people. We can't test her blood and we can't figure out the name of the disease. But even so, it's still worth having her try to take some!"
"Alright! Then let's make some right now!" Chrome exclaimed.
"What do we need?!" Kohaku exclaimed.
"I already said we lack every single ingredient. Listen, god dammit." Senku frowned. "That 'act first' mentality reminds me of a certain crude-minded oaf."

"But that's so advanced!" you said, still smiling. "How are we gonna do that?!"
Senku smiled, glad to be back on the subject, and drew again in the dirt, which is basically his board now.
"To make this cure-all, there are two routes we can take." he said. "We can penicillin from biological matter, or we can make sulfonamide from stones."
"Biological matter? Stones?" Kohaku asked, confused. "How do you turn those into medicine?"

"The most famous example is making penicillin out of blue mold." he explained. "Because penicillin was so useful, sulfonamides were lost to the annals of history. But in this stone world, taking the bio-route of making it would be like 'wow! What a coincidence! I somehow found some super blue mold that has ten billion times its normal power! Woohoo!'" his silly voice made you chuckle. "We'd pretty much be betting all our hopes on getting super lucky in a game of chance."

"Okay so, that's off the table." you said.
"And why do you think so?" he asked as soon as you said those words.
"Um..." you took a moment to chose your words, taken aback by the sudden question. "Well, it's better to take it slowly and succeed with 100% certainty, than to wait for a miracle...It's...it's pretty obvious." you glanced at Chrome and Kohaku to see if they got that as well and you weren't just being stupid.
His smile widened.

"Yeah! That's right!" Chrome exclaimed. "Our answer is obvious!"
"I hope you understand now." he said. "We're not gods, nor are we geniuses. One step at a time, that's how we work our way forward to create."

While Chrome was full of determination, you mentally frowned.
'Why did he said that in a general term?' you thought. 'Is he including me into this? Is this about that music thing again?'
Either way, Senku was trying to send a double-message. But you couldn't figure out what...

He then went back to drawing with his stick, a giant road map this time.
"We'll take the stone-route!"
"There's so many things!" you exclaimed as you looked at it.
"Seriously?! This is insane!" Chrome added.
"We're trying to warp two million years across the history of science." Senku said. "The only way there is is to go steady and straight through all of it."

"Alright! Let's start with this 'iron' stuff then!" Chrome exclaimed. "What the heck is it anyway? Tell me all about it!"
"It's not exactly going to be easy either." Senku said.
"Is this going to be Senku-sensei's sorcery." Kohaku paused. "Err... science class? Somehow I get the feeling that I won't understand a thing..."
"You sure you can handle teaching them all of that at once?" you asked.
"Kukuku, it's just the basics for any primitive humans. Let's just hope they quickly understand."

But what he didn't take into consideration was their curiosity. So at the end of the day, poor Senku was laying on the ground, exhausted by all the explaining and the questions his two fellow humans asked him. You sitting by his side, you tried your best to get some work off his shoulders by explaining the simpler things that you yourself understood. But just making them understand that the earth is round drained you of most of your energy. You couldn't imaging what Senku was feeling right now.

But at least, some of you were having fun.
"That! Is! Fricking! Insaaaaane!" Chrome shouted with stars in his eyes. "The earth itself is spinning?! That's insane!"
"Yeah..." Senku managed to say with a dry voice.
"That doesn't sound right." Kohaku, sitting on a tree branch, said. "Why am I not being thrown off this branch then?"
"Because gravity." Senku's simple response made you chuckle at his misery.

Chrome kept looking up at the sky, you followed his gaze.
"So many stars..." you said. "Back in the modern world, I was happy if I saw just more than five. It's so beautiful."
"Really?! Were stars just beginning to appear back in your world?!" he asked.
"Well, no... We just couldn't see them." you knew it was too vague, but after a whole day of explaining, you were too lazy to also explain the concept of electricity and street-lamps.

"I always thought it was strange," Chrome looked back up. "how that star never moves at all."
"Oh, you mean the polar star?" you pointed at it. "Yeah that's because it's aligned with the earth's axis of rotation. That why it doesn't move."
"Also called the north star." Senku added. "It's a ridiculously useful star that is ten billion percent guaranteed to be at true north. So you'd best remember it."
"You sure about that?" Chrome asked.
"That looks slightly off of true north for me." Kohaku looked up at the star with her 11.0 perception.
"That's not possible." Senku stood up. "The margin of error on that-"

He suddenly stopped himself, his eyes wide in realization, he looked up.
"The earth's axis... It tilted!"
"What?!" you stood up and looked at him. "I mean, I guess it makes sense. It has been 3,700 years after all..."
"And now in the present year of 5,739, the north star has moved!"

He placed a hand on his eyes, smiling.
"Kukuku... As a scientist, I can hardly believe that I would have overlooked something like this." he said. "Chrome and Kohaku, without any preconceived ideas ended up being way more perceptive than me. I feel like a loser right about now."
"Oh, Senku, come on." you lightly hit his arm. "Don't be so hard on yourself."
He looked at you.
"I'm not trying to bring myself down over it." he smiled. "Calming down and looking at everything, I know that I just haven't clicked in to the scale of everything yet." his gaze wandered in the night sky. "3,700 years... I may be a little late in noticing, but that really is a massively huge amount of time."

"That's weird." you said. "You've been counting every second through out those years."
"I may have been too focused on counting and thinking of the time when I'd get out."
"Well I realized..." you looked down, the memories of those horrible 3,700 years coming back. "Though I lost the perception of time, it just felt like forever. Repeating music again and again and again."
Your fists clenched, feeling overwhelmed, you stopped talking before you could break into tears. A moment of silence passed.

"3,700 years with nothing but music." Senku eventually said casually. "You must've grown sick of it."
"Huh?" you looked back at him, who was just contemplating the stars. "No... No, I could never."
"Why?"
Again with his pressing questions. But this time, you responded just as quickly as he asked.
"Because... Because there was so much of it. And it was so different." you said, looking straight into his eyes. "I don't think music is something people can get tired of. At least I don't."

Senku smiled, then poked your forehead. You yelped in surprise.
"That's right, ten billion points for you."
You smiled, happy to have gained some points. He turned around and started walking back to the HQ, you and the others following soon after.

"That's a start." he mumbled.
"Mmh?"
"Nothin'."