Daimon Kusunoki

Daimon Kusonoki (楠 大門 Kusonoki Daimon), also known by his stage name "D", is the drummer of the band Fantôme Iris.

Background
While he's unable to express himself much as other people could, he's actually the kindest person you could ever meet. What's more, he's hard on himself but very kind to everyone else. His grandfather ran a shop selling musical instruments and he learned about all sorts of musical genres from him. He's childhood friends with Koharu, and used to bring him home whenever he would get caught by the police. In the sharehouse, he's in charge of general housework.