Five years after his remarriage, a man's reclusive stepdaughter Hibiki finally leaves her room at age 20. He is stunned to see that she has developed enormous I-cup breasts, yet still wanders around the house in old clothes that expose their sides and show her nipples through the fabric. Unable to resist her unwitting temptation, he crosses the line: fondling her huge breasts, sliding his cock between them, and cumming repeatedly from titjobs. He promises to shower his adult stepdaughter with the affection he failed to give her during those five lost years.