Hoshino Kotone
星野 琴音
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| Hoshino Kotone星野 琴音A | |
| Measurements | Height: 163cm, Bust-Waist-Hips: 86-60-87cm |
| Birthday | 12 August |
| Hair | Ahoge, Pink, Waist Length+ |
| Eyes | Amber |
| Body | Big Breasts |
| Clothes | Blindfold, Nurse Uniform, Nurse's Cap, School Uniform, Shorts, Sport Bloomers, Tank Top |
| Personality | Modern Tsundere |
| Role | Childhood Friend, Student |
| Engages in | Bondage |
| Visual novels | Main character - HSK ~H na Imouto to Tsun na Osananajimi ni Hasamare ADV~ |
| Voiced by | Tamiyasu Tomoe |