Rinji Amatori

"Since then, she's afraid of asking for help from other people. This became a trauma."

- Rinji, about Chika.

Rinji Amatori (雨取 麟児) is Chika's older brother, and Osamu's former tutor.

Appearance
Rinji is a young man of average age. He has slick, neck-length light brown hair, and also black eyes.

Personality
He is quite caring about Chika, as he explained to Osamu the pain Chika went through after losing her friend.He doesn't seem to trust Border, for unknown reasons. He also seems to trust Osamu a lot, as he told him to take care of Chika should anything happen to him. However, later on, Chika describes him as an initiator, doing what he must if he wanted something.