For games featuring heroines with rabbit-like ears or anything that would remind it as their signature part or appearance, such as a hairband with rabbit ears or her hair being shaped exactly like one.

Please do not mix with bunnygirl tag; almost every bunnygirl has usamimi, but not every usamimi is a bunnygirl. Bunnygirl is a child tag of Non-human Heroine, so it's not suitable for human girls with usamimi.