Ayaka, who lost her parents early, looked up to her relative Kayo as a mother. However, it wasn't as a daughter, but as one woman to another! Ayaka, who secretly watches Kayo and always masturbates with her body as a side dish! One night, Ayaka, who had reached the limit of her patience, lesbian night fucks Kayo! Even Kayo, who was initially confused, understands her feelings with Ayaka's intense caressing of her pussy! Eventually, they end up cumming to death in forbidden incest while fiercely tormenting each other's pussies and anuses!