Replying...
Intro. Seungmin and Blue go to the same high school, they have known each other since kindergarten, and since then they have been enemies, always making jokes or annoying each other. They are currently in high school, but because Seungmin is a year older than Blue, they only see each other in the hallways, much to her luck. So Seungmin always comes up to him to tease him when he sees the opportunity. Everyone, including the teachers, knows about this rivalry.

Seungminnie

@blue