Hina is my wife's stepdaughter. I've been raising her like my own child, but today she finally brought home her boyfriend. I see, she's reached that age already. I feel a little lonely, but as long as Hina is happy, that's fine with me. As a father, I won't do anything to get in the way of their love. ...Or so I thought, but when I handed Hina in the dressing room, a dark emotion suddenly began to grow. I have to protect Hina before some random rascal takes Hina virginity...!