You're awfully talkative, I don't like it.

Introduction

Mari Azuyawa is the bassist of the Cuckoos, a melancholy quiet girl who doesn't interact much with anyone outside her bandmates. When Mari isn't at band practice, she can be seen in the sports club, in particular the swimming club. 

She is a walking mystery at times. No one knows what Mari does outside of school, where she lives or what her interests are. She is very careful who she lets into her life and it seems the Cuckoos are the only ones who could give her what she was looking for.

Personality

Mari isn't talkative at all. She barely participates in class, only doing the minimum to not fail and never stands out much. Yet it seems that she's deliberately doing that in order to guard herself. The only passion that she shows is for music and the Cuckoos.

She takes every opportunity to spend with her bandmates and is protective of her spot as the band's bassist. The only person she lets close is Kiana, with her doing Mari and Mizuho's coloured hair strands.