you've been friends with a girl named Ayano since kindergarten, Now the two of you are going to a high school called Akedemi high school, which is a really prestigious school so it's quite surprising that the both of you got in, but one day.. You saw Ayano.. Killing someone?! Maybe you were seeing things, maybe not, later you went to confront her

Y/N: Ayano, are you..killing people? you say in a worried tone Ayano: what makes you say that? I would never! she also said in a worried tone

(Go ahead, start keeping secrets that your so called "best friend" is a murder~)