While her husband is away on a business trip, Ichika decides to invite her students to her home for a special art lesson. What was supposed to be a fun after-school class takes a turn when the students discover her husband is gone for a three-day trip. They reveal their true natures and execute a despicable plan. Ichika Kamihata finally appears in this popular hard series! After three days of confinement, the female teacher is transformed into a lewd beast! I've come so many times I don't know what's normal anymore...