Saki Yagiri

Saki Yagiri is a classmate of Claire Futatsuki and a fellow member of the archery club at the Seikou Private Girls' Academy. She comes from a line of archery practitioners, and in terms of skill, she is the best member in the club, but she doesn't care to participate in competitions and regularly skips practice. She has a cold and taciturn nature, and doesn't have many friends.

She, along with her mother and the entire Yagiri family, are revealed to be Kyuukyuusha (救急者), members of a group fighting against the actions of the Keisatsukan (刑殺官), the secret force of executioners inhumanely disposing of criminals without trials or sentences.