Rie, a female teacher who returned to her teaching profession after giving birth. Students welcoming their return after a long absence. However, Rie who returned was different from before. Because it was the time when the milk was full and the milk came out the most. Then, in the locker room, remove the breast milk pads that were put in the swimsuit and replace them. From the day when I was accidentally witnessed by a colleague teacher, the view of the men in the school about Rie changed to an unpleasant direction.