Two sisters wandering through a residential neighborhood stalk a laborer returning home and break into his house. Older sister Azusa is intensely obsessed with the worker's sweat, grime, and discarded socks, passionately sucking them into her mouth. Meanwhile, younger sister Uta is fixated on the man's saliva, repeatedly exchanging spit with him through deep, wet kisses. As their desires intertwine, they forcefully lick and suck every unwashed inch of his body, ultimately being violently taken by him. The entire sequence unfolds with an eerie sense of normalcy, as if such acts were merely an extension of everyday life.