Chihiro is Aoi's best friend, and is a very calm and reliable girl who always has a smile on her face. She seems to be very fond of Shino, and the two start to spend a lot of time together. She has noticeably large breasts and "a weakness for cute things". Chihiro is actually very selfish, narcissistic, and manipulative, using others to get what she wants. She knows that Aoi is in love with her and spends time with Shino to make her jealous. She sees Nao as competition for Aoi's affection.