All credit goes to:  svtpuffedup

This is a base for a potion. Hope you'll like it.

This is a Yandere Potion. If you drink this, you'll turn into a Yandere.

In my upcoming fanfic, Valentine's Day(Twisted Wonderland Style), Vice Headmistress Celestia's younger sister, Luna accidently dropped the bottle that she picked up, unaware that it was a Yandere potion, and the stuff fell into the sink, and infected the students, except for Sunset Shimmer, and her friends.