Kaname Chidori

Kaname Chidori (千鳥 要 Chidori Kaname) is Koshiro's supervisor and appears to be around his age. While she is often critical of his sloppy appearance, she encourages him where she can. When Koshiro first sees Nanoka outside his job, Chidori encourages him to go on a date with her, not learning until later that Nanoka is his sister. She eventually becomes suspicious of the siblings' relationship, and upon realizing she is correct, attempts to get them to end things, even trying to convince Nanoka that she is dating Koshiro. When she realizes that the siblings can't be happy unless they are together, she decides to leave them alone in hopes they can live with their choice.