Isaka Ryuuichirou
井坂 龍一郎
| Isaka Ryuuichirou井坂 龍一郎 | |
| Hair | Black |
| Eyes | Grey |
| Body | Tall (obsolete) |
| Personality | Funny, Manipulative |
| Visual novels | Side character - Junjou Romantica ~Koi no Dokidoki Daisakusen~ |
| Voiced by | Morikawa Toshiyuki |
| Isaka Ryuuichirou井坂 龍一郎 | |
| Hair | Black |
| Eyes | Grey |
| Body | Tall (obsolete) |
| Personality | Funny, Manipulative |
| Visual novels | Side character - Junjou Romantica ~Koi no Dokidoki Daisakusen~ |
| Voiced by | Morikawa Toshiyuki |