Ookouchi Yume
大河内 夢
| Ookouchi Yume大河内 夢 | |
| Hair | Mullet, Parted to Side, Shoulder-length, Spiky Bangs, Violet |
| Eyes | Cyan, Tsurime |
| Body | Pale, Slim, Teen |
| Clothes | Belt, Capri Pants, Glasses, Hairpin, Lab Coat, Sandals |
| Role | Medical Doctor, School Nurse |
| Visual novels | Side character - Natsuyume Nagisa |
| Voiced by | Tamiyasu Tomoe |