In her second year working as a nurse, Aoi harbors a secret affection for Kazuma, a hospitalized patient. Her feelings are discovered by Shin'go, a nurse from the neighboring ward, who uses incriminating photos to blackmail and assault her. Bound and helpless, Aoi is forced into oral service, reluctantly submitting to his demands. The abuse grows increasingly extreme, drawing in fellow patients and even doctors, pushing her into a state of utter humiliation and despair. As her consciousness begins to fade, a shocking truth is revealed to Aoi...