Four families move into a new style of housing complex with a shared courtyard. The Igarashis, a young couple, are trying to get pregnant without success. Sugisaki Chihiro and Kawamura Ryouji are recently engaged and plan on continuing their extravagant, childless life even after marriage. The Komiyama family are the typical salaryman and housewife with two daughters, but have problems of their own. Finally, Hirose Wataru, the complex's architect, only wants to hide his homosexuality and his new relationship with young Aoki Saku, who moves in despite Wataru's objections.