Through a series of coincidences, Yoshinori wound up having to fill in for his beautiful older sister as a model for a bridal gown. Now, he has discovered that he has a liking for cross-dressing, and that by doing so, he is learning a great deal about what it means to be a woman - and a man.
But when Yoshinori, dressed as Yuki, hears childhood friend Hidari confess that she is actually in love with him, things get a bit out of control!