A lesbian love triangle story between a mother, Tsubaki, who is a true lesbian, and her daughter, Ai, who has lesbian tendencies but is shy, and Ai's straight friend, Ichika! When Tsubaki hears that her friend Ichika is coming over, Ai gives Ai a lecture on how to seduce her, making her cum many times. Ai and Ichika are excited to meet again after a long time, and Ichika start chatting and practice kissing, touching each other until they climax. Ichika stays over and Tsubaki rapes her in the night, but she awakens to her lesbian side and they become close. Ai is angry at her mother for cuckolding the boy she loves. Ai is caught between the two of them and approaches Ichika, who is feeling a Ichika awkward, and kisses him. Tsubaki, who has been watching, joins in and trains the two in lesbianism. The three women are entangled violently...