[A Scientist's Weakspot] Ishigami Senkū x Reader

Chapter 1: My annoying buddy

She was the student council president and no one wanted to get on her bad side. One could say that she was an example of an all-rounder. Good at school, beautiful, kind. Her name was Y/N. When she had first started being the president, there was one particular kid that got on her nerves. He was a year older but he never acted like one. He was always creating trouble with his science experiments and she would sometimes bump into him doing stupid things in parks. Over a year had passed and she learned a new hobby of hers—annoying Ishigami Senkū. She jumped around, wrapping her arms around his shoulders that slouched as he worked on his project in the science lab.

"Hey~ Causing more trouble?"

"I'm not. You're causing more trouble for my back."

"I'm not that heavy!"

He scoffed as she removed her hands. She sat next to him in silence and he was slowly getting annoyed at how she just kept staring at his work.

"What do you want?"

"Hmm... I just want to tell you that I won't be around tomorrow to bother you."

"Thank goodness."

"Yeah, yeah. But I'll be back to bother you. Your dad allowed me so I have all the right to annoy you."

"My dad is not me. Hello?"

"Sheesh. Anyways, don't go missing me~"

"Like I would."

Y/N just pouts, tapping his shoulders to tell him she was going off. He just nods and when she turned her back, he watched her exit the lab. A day without her was going to be really different but he might find peace. The next day came and Taiju slammed the doors open.

"HEAR ME OUT SENKŪ! TODAY, I'VE DECIDED TO TELL MY 5 YEARS OF FEELINGS TO YUZUHIRA!"

"Interesting... I will cheer for you until my vocal cords break, right here from this chemistry clubroom."

"Really? THANK YOU SENKŪ!"

"Oh... I'll give you an extremely logical method. It's sort of a love potion."

Taiju held the glass, in deep thought, before dumping it.

"Thank you Senkū, but no, I can't rely on this sham."

He rushes back out and the club members were scared of Senkū as the substance in the glass was gasoline.

"I was a billion percent he would've never drunk it."

The members lined up at the window, watching the scene unfold as Taiju and Yuzuhira stood by the tree.

"100 yen he will get rejected, full front."

"500 yen on rejection."

"1000 yen on getting rejected."

"10000 yen on unexpectedly not getting rejected."

"REALLY?!"

Taiju nervously fumbles with his words as Senkū watched his friend try and confess to the girl. He pulled out his phone as a notification rang. Y/N had uploaded a picture of her hugging a dog.

Going back to visit my gramps! Can't wait to see the puppies~

He chuckles, now knowing why she had left a day early. Suddenly, there was a bright light and near an instant, everyone was turned into stone, in darkness, all alone.

Senkū woke up, surrounded by overgrown plants and petrified people. Of course, he could not stay put. He was going to build the kingdom of science. One by one, he revived Taiju, Yuzuhira, and Tsukasa... But he could not find her. His mind was always preoccupied with science thoughts but there was a bit of worry on whether she was able for him to save. Time went on and they had finally found a village and was at the last stage of the fight for Ruri's hand in marriage. Senkū stood on the stage and everyone was silent.