Living an ordinary life with his ordinary wife, Yuriko, in an ordinary apartment, Yo-suke Tachibana is an ordinary man. One day, the Kyo couple moves into the room next to the Tachibanas'. 'She's incredibly beautiful…' Yo-suke instantly falls for Riko, the neighbor's wife, and starts thinking about ways to become friends with her. Just then, an opportunity suddenly presents itself. His wife, Yuriko, is planning a get-together with the Kyo couple! Yo-suke can't suppress his pounding heart…
