At the class reunion party, Soras's current girlfriend, Mayu, suddenly announced that they were dating. Rena and the others, who had always continued to love Sora, publicly cuckolded her in front of her current girlfriend, committing Sora right before her eyes. They kissed, licked each other's genitals, and rubbed against each other... In this world of only women, by becoming naked and intertwining, complex emotions that can only be conveyed in this way intersect.