There's a secret between Riko and her father that she can't tell anyone... A secret she can't tell her friends, her teacher, let alone her mother. Riko had no choice but to say no. Her father's distorted love escalates... Even Riko, who lives such a life, got a boyfriend. One day, her father witnessed Riko giving her boyfriend a blowjob in her room and took an unbelievable action...