If Thao's teacher is the most mentioned name in Vietnam's lecture hall for lust, in Japan, that title must be given to Kamihata- a high school female teacher. But there is a difference between these two characters, the Thao teacher has a vague relationship with students in our film and has a relationship with the labor. From the time of applying for cleaning in the school, Lao Cong always looked at her with an evil thought in his head that he had to capture her body. The chance finally came, when the school was only two people left, he had a trick to force her to make love to her, shy but happy, so she could only move softly. After that time, the relationship between the two increasingly approached when the afternoon they both made an appointment to enter a closed area to be able to fully implement the clumsy love affair.