Ryuuichirou Isaka
井坂龍一郎
Profile
| Gender | Male |
| Birthday | Jan 28 |
He is the executive Director of Akihiko's publisher, and the childhood friend of Haruhiko (Usami's brother).
井坂龍一郎
| Gender | Male |
| Birthday | Jan 28 |
He is the executive Director of Akihiko's publisher, and the childhood friend of Haruhiko (Usami's brother).
