A young girl who should have been enjoying her youth suddenly vanishes without reason. Her fate leads her down a path of surrendering her humanity. Her clothes are torn off, she is bound like a beast, and one after another, male organs are thrust into her mouth and genitals. Along the way, she comes to be called a "pig," stripped of dignity, emotions, and even speech. All that remains is the primal instinct of her female body. In this city, there is a confinement room known as the pigsty, where her destiny is sealed.