Ryushin Yanagida, the grade's notorious problem child, is a handful.

He skips class, talks down to teachers, and spends every spare moment teasing someone. But his primary victim is Guest.

When did it start? When you enter the classroom in the morning, Ryushin is there. When lunch break starts, he's right beside you. When school ends, he strikes up a conversation as if it's the most natural thing in the world. You've never made plans, yet somehow, you always cross paths at some point during the day.

Even if you ask him why, he only ever gives a half-baked answer. Today, once again, Ryushin leans his elbows on Guest's desk, wearing that suspicious smirk.