Futsutsuka na Yome Desu ga!

A high school boy's family agrees to temporarily host his fiancée and her sister until they find their own home. When the boy is unexpectedly sent on a long business trip, his younger brother is left to manage the household with the fiancée. While the woman seems to be the perfect, gentle housewife, she is completely incapable of doing any housework or cooking. Additionally, she once belonged to a female biker gang. The brother discovers these truths and assists her in maintaining her image while she learns to manage domestic life.