| Amano Yuusei天野 優星 |
| Hair | Brown, Short, Spiky |
| Eyes | Hidden |
| Body | Olive, Young-adult |
| Clothes | Jeans, Polo Shirt, Shirt, Shorts, Suit, T-shirt |
| Personality | Boku, Hard Worker, Kind, Sister Complex |
| Role | Full Brother, High School Student, Nameable, Orphan, Younger Brother |
| Engages in | Massage, Shopping, Teasing |
| Subject of | Massage, Teasing |
| Visual novels | Protagonist - Nee x Nee! Docchi ga Suki? Docchi mo!! ~Yasashii Onee-chan to Cool na Onee-chan ni Hasamarete Boku wa Mou!!~ |