一ノ瀬 梓沙

A school school girl who Ryuusuke has been assigned to watch over her studies. She is a fast thinker and not to be underestimated, even though she usually plays around with her friends and has the lowest grades in school.

She also looks down on Ryuusuke as an “F” grade student and does not listen to him at all. She often gets hit on by guys or tries to get scouted by talent seekers because of her large breasts and good looks.

She has a distorted personality that likes to show off and feel superior to those around her because she is proud and does not want to be seen as “cheap".

She has a handsome boyfriend, named Takashi. She has not had sex yet.