|Tsutsui Nao筒井 直|
|Hair||, Short, Violet|
|Clothes||, Hairpin, Hoodie, Kemonomimi Hat, Leotard, Miniskirt, School Uniform, Thigh-high Stockings|
|Role||, Full Sister, High School Student, Secret Girlfriend|
|Engages in (Sexual)|
|Visual novels||Main character - Kisei Fuka ~Ore wa Sonzai Shinai no de, Nani o Yatte mo Yurusareru~|
|Voiced by||Sakura Momoka|
Hideyuki's younger sister. She goes to school with her brother but attends a different class. She's in love with Masuda Hiro, the popular boy in school. She's in gymnastics and sometimes wears a leotard.