They encounter a busty, busty high school girl who is extremely well-developed during a school trip in a mixed-bath open-air bath!! The 18-year-olds, who are very interested in sex, continue to have sex in groups against an older man!!

A schoolgirl on a school trip suddenly enters a mixed-bath open-air bath. Recently, a teenager has been developing well and has big breasts, making it difficult to find a place to look at. It's not just her body that develops quickly, but she has a full interest in sex. She stares at her dick and gives a job with her hands. When she gets an erection, she gets excited and asks for caresses. She also feels good, and ends up having sex with a high school girl in the open-air bath. Her desires escalate and develops into erotic acts in groups. Young and energetic high school girls have a strong sexual desire and can't hold any number of dicks!!