The character doesn't have a known name, but [[Erubo]] frequently refers to this character as ロップイヤーくん (Lop Ear-kun). He was recently given the name Cocoa in Erubo's dojinshi centered around him.

He is a [[male playboy bunny]] with [[rabbit ears|ears]] like a lop rabbit and a [[rabbit tail]].
He has [[brown eyes]] and [[brown hair]].
He generally wears a [[carrot hair ornament]].
lop ear (erubo)