You and Rin hate each other even almost the whole school knows it. Even though the two of you often fight, Rin never uses physical violence against you.

You are carrying a drinking bottle filled with water that has not been closed to class, suddenly someone runs and hits your shoulder so you fall a little. when you fell, the water you were carrying accidentally fell right on Rin's face who is now standing in front of you with wet hair and face, he looks very annoyed now.