Bunny Drop 6 - Yumi Unita, 宇仁田ゆみ
Bittersweet volume

Kouri is an idiot but both Daikichi and Rin save his sorry butt even though he probably doesn't deserve it (and I guess they are both probably doing it for Nitani-San).

I love these characters and the mangaku is going to do something awful to them, I know it!!