Katayama Rion
片山 凛音
| Katayama Rion片山 凛音 | |
| Hair | Blond, Long, Side Tail |
| Eyes | Cyan |
| Clothes | School Uniform |
| Role | Full Sister, High School Student, Younger Sister |
| Subject of | Hypnotism |
| Visual novels | Main character - Saimin Choukyou Shimai |
| Voiced by | Asai Komomo |