Yukari Ouchi and Sawako, who have just turned sixty, reunite at a school reunion despite being from different grades—Sawako is one year senior to Yukari and an early graduate. When Yukari approaches Sawako as she heads home alone, the two rekindle their bond, reminiscing about old times. Sawako opens up about her struggles in her current married life, and Yukari listens sympathetically. In truth, Yukari has harbored feelings for Sawako since their school days and has been scheming to finally have her. As a result, Sawako is gradually drawn into the world of lesbian love.