A plump wife, Yuko, who lives a modest life with her husband, Ryo, who runs an apartment. Yuuko's frustration only increases because Ryo is impotent and useless when it comes to night life. Yuko confides in her troubles to Sagawa, the president of a construction company who lives nearby. Sagawa, who is full of energy, pushes Yuuko down with the momentum of the spot and fucks her. Erections tasted after a long time ○ Po ... Yuko who can not suppress the libido that springs from the back of her body even though she knows that it is not cool ....