佐賀 亨

Hobbies: Guitar.
Likes: Music in general, Ririsu.
Dislikes: Studying.

A second year student at Sumisora High School. While Tooru's a little bit of a luck-pusher, it was shown that his actions are not as great as his words. He is known in his school as a legendary useless person. Tooru plays the guitar. When it comes to music, he can listen to anything, from classical to death metal.
In "Next Relation", after getting a license, he purchases the motorcycle he always wanted.

In "Yubikiri no Kioku":
Childhood friend of Naoki and his friends.
After failing the college entrance examination, Tooru goes to a prep school while working part-time. He still is hopelessly in love with Ririsu.