Kuroishi Kotone
黒石 琴音
| Kuroishi Kotone黒石 琴音 | |
| Hair | Curtained, Violet, Waist Length+ |
| Eyes | Amber, Tsurime |
| Body | Medium Breasts, Pale, Teen |
| Clothes | Cross Design, Cross Necklace, School Uniform |
| Visual novels | Side character - Hakudaku no Aoki Erena ~Shaseishitara Fuuin ga Tokeru Nante Mushiro Gohoubi Desu~ |
| Voiced by | Haruna Ren |