Goto Emi's father cancels a subcontracting job, forcing small business owner Makimura to shut down his company. While her parents are overseas on a business trip, Makimura rapes Emi and holds her captive, forcing her to live naked and subjecting her to relentless sexual abuse. When her parents finally return home, Emi—now conditioned by repeated sexual encounters with Makimura—finds herself climaxing uncontrollably right in front of them.