Primary

Akira Amamiya Step-brother of Yuko Amamiya

Yuko Amamiya Ally of Hiro Hirono

Yuko Amamiya Ally of Miyako Miyamura

Yuko Amamiya Ally of Mizuki Hayama

Yuko Amamiya Ally of Kyosuke Tsutsumi

Yuko Amamiya Friend of# Mizuki Hayama

Yuko Amamiya Lover of Yuu Himura

Yuko Amamiya Step-sister of Akira Amamiya

Akira Amamiya Teacher of Yuu Himura

Yuu Himura Guardian of Chihiro Shindou

Yuu Himura Lover of Yuko Amamiya

Yuu Himura Friend of# Mizuki Hayama

Yuu Himura Friend of# Shuuichi Kuze

Yuu Himura Brother of Akane Himura

Akira Amamiya Teacher of Shuuichi Kuze

Shuuichi Kuze Friend of# Renji Asou

Shuuichi Kuze neighbour Sumire Asou

Shuuichi Kuze Lover of Mizuki Hayama

Shuuichi Kuze Friend of# Yuu Himura

Shuuichi Kuze Former crush of Nagi Hirono

Akira Amamiya Teacher of Nagi Hirono

Nagi Hirono Sister of Hiro Hirono

Nagi Hirono Friend of# Yuu Himura

Nagi Hirono Sister of Hiro Hirono