A teacher and a student from the track and field club. She's been treated like a sex toy on a daily basis, but this time, it's a one-night hot spring training camp for just the two of them. This beautiful girl with thin pubic hair and a budding chest has been trained to need her teacher's permission before she can cum. She's toyed with in the hallway of the hot spring resort and made to cum while trying to stifle her voice, and is forced to serve and have sex in the open-air bath, has sex in her uniform, and gets a thick facial, becoming a sex doll for the perverted teacher!