Hitomi is a housewife who lives a happy married life with her husband. With her birthday coming up soon, she has been attending her cooking classes frequently to hone her cooking skills for her husband. One day, Hitomi attends a special course and resists her instructor, Tsutsui, but she is helplessly raped. She was frightened by the repeated favoritism of the perverted and obsessive Tsutsui, but she felt an evil lust sleeping within her... You... I'm sorry...