Ruka, a boyish girl with short hair and cuteness like a child, has a shocking female orgasm during her first-time sexual encounters! "I want to do things that normal people can't do," says Ruka, who is full of energy. The desires that have been nurtured by fantasies since her school days are released! She's ready to go after increasing her sensitivity with an oil massage. Her first big cock, her first service, her first blindfold, her first threesome! A serious student teacher who was devoted to swimming in her school days gets to know a man and cums like crazy! The boyish beauty has become vulgar and erotic like an animal!