An ordinary husband, Yosuke Tachibana, lives an ordinary life with an ordinary wife, Misato, in an ordinary apartment. One day, Mr. and Mrs. Hibiki moved into the room next to the Tachibana family. "You're a beautiful wife..." Yosuke, who fell in love with the married woman next door, Ririko, began to wonder if there was a way to get along. Then suddenly the opportunity came. His wife, Misato, was planning a get-together with the Hibiki couple next door! Yosuke can't control his heartbeat...
