Miki has a good job and works in an office Shes been dating Ryosuke and theyre happy together except for the fact that Miki is also in a relationship with her college professor Tanaka Tanaka is trying to break up with Miki because of his wife but Miki wont hear of it Ryosuke is also unfaithful and he has a onenight stand with Chihiro who also has a boyfriend The plot thickens when both girls discover they are pregnant and dont know who to name as father This romantic drama about relationships is proof that love can also come in squares