Ai works in sales at a certain company. Suzu, a junior from her university days, has been subjected to constant power harassment and sexual harassment by her boss Kawagoe. One day, while visiting Kita, the president of a major client, Suzu makes a big mistake and angers Kita. After receiving a severe scolding from Kita and his men, Suzu, a natural masochist, loses her sense of self, is made to swear obedience, and is gang-raped. Furthermore, Ai is called in and told that "the responsibility of subordinates is the responsibility of their superiors," and she is sent into a hell of wickedness and iniquity...