While her husband is away on a business trip, Ichika invites her students to her home to give them a special art class. It was meant to be a fun after-school class, but when the students find out that Ichika's husband is away on a three-day business trip, they reveal their true selves and carry out a despicable plan. Kamitoda Ichika finally appears in the popular hardcore series! After three days of confinement, the female teacher turns into a lewd beast! She's so excited she doesn't know what's normal...