Kanon and Koharu, senior and junior at a massage parlor, secretly harbored feelings for each other. One day, after work, Koharu promised to give Kanon a massage, and the two spent intimate time together. As Koharu massaged Kanon, she became overwhelmed by her softness and charm, her heart trembling with emotion. Unable to restrain herself any longer, Koharu finally kissed her. The sensual bond between these two big-breasted women deepens through their secret massage sessions.