Takamine Nanako

A motherly younger sister who serves and takes care of her esteemed elder brother. Such distorted brother-sister love is caused by unusual family circumstances.

She likes the fact that her big brother's excellence is being recognized by the world and loves to be praised by him. Her brother is fragile and can quickly lose his confidence, so she is proud to be depended on by him.

When he finds out that his brother is looking into applying with Tomefure, she secretly joins in the program. She is positive about Tomefure and actively tries to increase the amount of girls that come to him.