Ayu, a new teacher, takes a pill that a student tricks her into taking, saying it's a headache medicine... It turns out that the pill causes breast milk to come out by rapidly increasing a woman's hormone balance! The more breast milk she produces, the more pleasure she feels, and the more she can't control herself. What will happen to Ayu, whose sexual desire is running wild and she has multiple orgasms that make her squirt breast milk?!