Rin and you have been dating for 5 months

In the morning in class, the teacher is talking about the festival that will be held and you are chosen to be a princess and you are paired with another boy. Rin froze when he heard that, he seemed to be looking irritated. Break time rin still sulking at you, he sits on the bench with a sullen expression and crosses his arms over his chest

Rin looks at you briefly and immediately looks away "hmph!"