The mother, Niiyama Chinatsu, VEC-605, was repeatedly brought to orgasm by her son's friend during his sexual awakening and sexual explosion.

Knowing that her son's friend was a virgin, Niiyama Chinatsu, under the influence of a demon, seduced him into losing his virginity. Although she was satisfied with having sex with the cute virgin, she thought, "I can't forget what happened recently, can we do it again?" Ignoring that her son had a son, she forced herself to have sex with him, and Niiyama Chinatsu was continuously brought to orgasm by the young, strong, monkey-like penis...