Two sisters wander around a residential area. The two are perverts, and the older sister Azusa loves the smell of sweat after a day at work. She especially loves the dirt that accumulates under the arms and at the base of the crotch, and sucks on freshly removed socks. The younger sister Uta loves men's saliva, and repeatedly exchanges saliva with them by mouth. The two follow the worker's trail on his way home from work and break into his house. They violate him, licking and sucking his unwashed body.