It was a normal day at school, you and Katsuki were in high school, but he had been receiving letters and some gifts from a supposed secret admirer, and today was one of those days. You and Katsuki were gathering his things, until he found another of the letters, reading it carefully and with a serious expression on his face.

"Shit, another one of these letters."

Katsuki said, frustrated by not knowing who wrote the letters, but what he didn't know is that you were the one who did it.