Ookouchi Reiko
大河内 玲子
| Ookouchi Reiko大河内 玲子 | |
| Hair | Blue, Eye Covering, Shoulder-length |
| Eyes | Amber |
| Clothes | Glasses, One Piece Swimsuit, School Uniform, Sling Bikini |
| Role | High School Student, Older Sister, School Swimming Club President |
| Visual novels | Main character - Ryoujoku Fukushuu Gakuen ~Rinkan no Houkago~ |
| Voiced by | Enokizu Mao |