A female teacher who invited students who did not perform well on the weekend to a supplementary lesson at home: Kaho. On this day, my husband was on a business trip and I was planning to study quietly, but the students started to skip and went to bed with dismay. Then, at midnight, the students executed a rep plan that attacked them sleeping, saying, "It's like rubbing the teacher's boobs," and the students who lost their reason to the big pie in front of them committed sexual desire and confined them. From there, the tragedy that continues to be surpassed day and night for three days begins ...