Nanase Yuuichi
七瀬 祐一
| Nanase Yuuichi七瀬 祐一 | |
| Hair | Brown, Short, Straight |
| Eyes | Brown, Tareme |
| Body | Pale, Slim, Teen |
| Clothes | Jeans, Shirt, Swim Shorts, T-shirt |
| Personality | Donkan, Friendly, Kind, Ore, Pervert, Reserved, Sister Complex |
| Role | Full Brother, Nameable, Older Brother |
| Engages in | Teasing |
| Subject of | Seduction |
| Visual novels | Protagonist - Imouto Paradise! 3 ~Onii-chan to Gonin no Imouto no Sugo~ku! Ecchi Shimakuri na Mainichi~ |