our promise [dr. stone; senku x fem!reader]

"I like you." A phrase made up of three simple words that shouldn't carry as much weight as it did. Well, not that it really mattered to Ishigami Senku.

In every way, romantic attraction was something that just clouded your rational judgement and distracted you from the things you should be doing. Something annoying. Something that, the more you try to push away, the more it pokes at you. But as much as he'd like to say that it was ten billion percent only based off of the scientific studies he stumbled upon while researching about brain neurons and whatnot and the behaviors of Taiju, Yuzuriha, and heck, even (Y/N), the truth is--it wasn't.

·̩̩̥͙＊*•̩̩͙✩•̩̩͙*˚·̩̩̥͙＊*•̩̩͙✩•̩̩͙*˚·̩̩̥͙＊*•̩̩͙✩•̩̩͙*˚·̩̩̥͙＊*•̩̩͙✩•̩̩͙*˚·̩̩̥͙＊*•̩̩͙✩•̩̩͙*˚·̩̩̥͙＊*•̩̩͙✩•̩̩͙*˚·̩̩̥͙＊*•̩̩͙✩•̩̩͙*˚·̩̩̥͙＊*•̩̩͙✩•̩̩͙*˚·̩̩̥͙＊*•̩̩͙✩•̩̩͙*˚

They were childhood friends, one being louder and more obvious about their feelings than the other. Despite seemingly having erased the word "romance" from his dictionary, he couldn't help but glance at her, with his words to her from thousands of years ago still ringing in his ears.

"I promise."

Disclaimers:
*This fanfiction follows the path of the original plot in the anime (and manga, later on) with a few twists here and there, so some, if not most, of the plotline belongs to Riichiro Inagaki.
*In addition, there'll be some scenes that I take straight from the manga. It will happen more frequently if I ever finish writing everything before the anime catches up. Those, too, belong to Riichiro Inagaki.
*There will be dialogue taken straight from translation, and others reworded but keep the original meaning. None of these belong to me.
*I do not own any characters mentioned in the Dr. STONE anime and manga.
*The pictures I used to create the cover belong to their rightful owners.