She appears to be naturally close with Cocoa and hit it off with her quickly. They share many of the same thoughts and opinions due to having a same "wavelength" mentally. She is very gentle with her and is normally the girl who comforts her compared to the blunt nature the others display.
Compared to the other girls, Chiya doesn't interact with her much. She is kind to her however.
She genuinely enjoys her company and hanging out with her, and is always willing to go the extra mile to make her feel comfortable.
Friends since childhood, they are very close. She often teases Sharo but considers her a special friend and always tries to make her feel better.