It's a story about Kazuko who always put up an act that she's a perfect good girl upfront. People think her parent has a perfect daughter while in fact it is just something she puts on a facade.

Kazuko loves her own uncle, Yutsuru. Without telling anyone, she prepares herself to be his perfect wife since she's little. Yet, one day her uncle announced to everyone that he's going to get married. Kazuko is shocked, everything she did is a waste. The Worse thing is that, his fiance is going to live in the same house with her. How can Kazuko stands sharing the same roof with that woman? She doesn't.

Kazuko decided to ask her parent to moved in her another uncle's house instead. He's going to be in Toronto, so she takes this chance to stay there alone to heal her heart. However, her plan fails, when her uncle is about to leave to Toronto, she ended up having to live with 2 new people in the house. Kayumi, who always help Kasuko's uncle carry things around in supermarket-she got kick out from her rented place, and Tsutomu whose his uncle is Kasuko's uncle's best friend-he wants to stay here to study for his Entrance exam peacefully.

Kazuko is, without her uncle in the house, reveal her true self, uncaring, demanding, yelling at Kayumi and Tsutomu and refused to let the two stay over at her uncle's house but then the table has turned. Kayumi recognize her that they are from the same school and she threatening Kazuko that she will revealed to everyone in the school of how Kazuko, the perfect student is. Kazuko has to let Kasumi stay in. Meanwhile, Tsutomu calls Kasuko's uncle and get his permission to stay there too. Kazuko has to live in this house with 2 persons she doesn't like. With each person quirk, added in Yusuru's friend who is a gay who likes to visit Kazuko, How will their life turn out to be?