He is married, a dad of five kids, and a master carpenter with a sexual appetite. Five kids! Even a condom can't stop you! That's enough! No more sex!, one day his wife declared. Then, the trouble had started when this big guy found out how good it felt to masturbate using his own ass. What's wrong with you, boss?, when his colleagues noticed something wrong with their boss, a cum-soaked sex battle begins among the horny carpenters at the construction site. (All texts in Japanese).