Miyama Katsumi (CV:ハヤテ迅/Oda Hisafumi) is a first year student, your kouhai, and his family sells kimonos. Because he is the second son, he is freed from the responsibility of inheriting the family business and as a result he has a wild and somewhat childish personality. He wanted to pass a love letter to a female student, but before that he found out that she was already in love with another male student. The two of you meet when you pick up his letter.