Shiori Usami/Relationships

Osamu Mikumo
Usami is constantly shown to care for Osamu and helps him out with both planning and executing his rank war strategies.

Yūma Kuga
She seems to cares for him and is nice to him overall.

Chika Amatori
Usami likes pampering Chika, and always helps her during rank wars.

Hyuse
She seemingly likes Hyuse as a teammate at the very least but Hyuse's opinion of her is unknown.

Reiji Kizaki
They seemingly have a good relationship and can understand each other.

Shinnosuke Tsuji
She has been shown to like to mess with Tsuji, she also goes to the same school as Tsuji but mentions that he always has his guard up.

Sumiharu Inukai
She is shown to be annoyed by Inukai.

Kazama Squad
Usami maintains good relations with her former squad, though she is annoyed by Kikuchihara's blunt nature.

Arashiyama Squad
They seemingly have a good relationship based off Ayatsuji's comment.

Yōsuke Yoneya
They are cousins. They seem to have a really good relationship, as Yōsuke was seen taking care of Yōtarō on Usami's behalf.