Kousaka Hatsumi
高坂 初実
| Kousaka Hatsumi高坂 初実 | |
| Hair | Blunt Bangs, Brown, Long |
| Eyes | Brown, Tareme |
| Body | Pale, Slim, Teen, Younger Appearance |
| Clothes | Dress, Garter Belt Stockings, Glasses, Hairpin, Miniskirt, Ribbon Tie, Skirt Suit, Thigh-high Stockings |
| Role | Librarian |
| Visual novels | Side character - Period Main character - Period Sweet Drops |
| Voiced by | Nogami Nana |