Would You Kill for Me? (Yandere Genshin Impact x Fem!Reader)

Special- Love Potion: Failed Project 3492 (Valentines)

Ah. Valentines... not a popular writing project- BUT I had an idea on how to make Sucrose more included.
You can guess what's going to happen here based on the chapter title.
And... I don't know why... but I jump at the opportunity to change personalities around.

And technically, this idea is used- like often. But... in the description of this book I promised you cliché- and that's what you're going to receive!

Eh~ enjoy!

Note to self:- Discharge of Dopamine- the Exoneration of Gloom

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It was Valentine's Day at school, the halls had little paper hearts pasted to walls, and certain lockers were decorated too (mostly the jocks). It was a nice time of year.

Sucrose waved her arms at Y/n and fished a chocolate from her backpack once the h/c haired girl approached her.

"Ah. These are homemade!" She smiled, handing one into Y/n's open palm.

Y/n glanced at the paper wrapper, decorated by hand with colourful patterns and squiggles, "thank you."

Then Sucrose suddenly perked up, an idea occurring to her. "Oh! Y/n? Would you like to help me test out a new experiment?"

"So- I'm a test subject?..."

"No, no! I need to find some of your grumpy friends," Sucrose laughed nervously.

Y/n rose her eyebrows, "so. They're test subjects?"

"Correct. Uh, you can stay there and watch... and it won't hurt, I promise!" She then pulled a vial from her pocket- it was quite large and she took it down the hall into the school lab, gesturing for Y/n to follow.

Sucrose poured a little portion into a small spray bottle and shook it up, "this is my 'Dopamine Discharge, the Exoneration of Gloom.'"

"That is an... interesting name."

"It becomes difficult to name my inventions and experiments, as I've created so many..."
She grinned, her face lighting up, "but... this one will work- I'm sure of it!"

So,that was why Y/n stepped out into the hallway before classes to look for some of her most straight-faced classmates.

And, luckily one was standing across from her.

"Oh, hey Eula! Do you want to test something out with me?"

"What do you ask of me?.... A test subject, or else-"

"Yeah. It won't hurt, I promise."

And that's how Eula ended up sitting on a stool in the laboratories.

Sucrose smiled softly, "this won't hurt. It'll be like I am spraying water."

She sprayed the misty particles over Eula's face. The latter sneezed- a cute "'choo.'" Then she grimaced.
"I do not see the point of that-"

"You want to wait here right? To see the effects?"

But Eula had already stood up and closed the door of the lab. "Next time, it will end in your demise..."

Y/n tilted her head at the green haired girl, "shall we try again?"

"Yes."

As soon as Eula stepped out, coincidentally another showed up with his brother.

"Eula!" Kaeya slung an arm around her shoulders, then she shrugged him off. He pouted- attempting to look cute.
Diluc was trailing along behind them.