In a King's Game held in a male student's room, Arisa Kanno is forcibly turned into a pig and forced to perform blowjobs. When she resists, the boys become enraged, claiming she bit their dicks, slash her panties, and force her to strip and expose her anus. Unbeknownst to Arisa, a secret auction is taking place at school where her bare pussy is being traded for 15,000 yen. A deal is made to offer Arisa for 20,000 yen per session to raise money for medical expenses. After school, she endures 20 consecutive creampie sessions in a room, testing just how much her slender body can withstand.