Kozue Otomune

Kozue Otomune is a second year student at Hasunosora Girls' High School. She is an honor student who is well respected at Hasu no Sora due to her excellence in academics and sports and her handsomeness, but she is not boastful about them. She was born into a musical family and has taken various music lessons from a young age. She spares no effort in anything she does. She is bad with technology but claims she is on her way to becoming good with them.

She is a member of Cerise Bouquet, a unit under the Hasunosora Girls' High School Idol Club. Her image color is mermaid green.

Her hobbies are stargazing, appreciating music, and making tea and cakes. Her special skills are classical ballet and strength training.