An adult alumni association where men and women are gathered by 30s and women in their thirties.Hikari (32) has been married to her husband, Kazuya (32), has been married since school days, and is now a sixth year of marriage.One day, an alumni association invitated by nostalgic students gathered, and the busy Kazuya decided to join the work with two couples.All of them are uniformly drinking and exchanging alcohol and reporting each other's recent situation.There are various speculation of men and women there ...!
