A small gang of revolutionary students is hidden away by a small-time thief. While they are in hiding, everyone except the thief takes turns engaging in sexual activities with a girl who appears unhappy and perhaps unwilling, having had the misfortune of getting involved with them.
A teenage boy has now moved in the home of his mother's friend, because she had died a while back. It just so happens that the Yakuza family has four beautiful daughters, but one daughter, Hibari, who is more beautiful then the rest of the daughters is male. Hibari just can't keep her hands off our hero and so their crazy yet happy lives go on.
