Hana, an unfaithful female teacher who is a married woman but has a relationship with one student, one day has a relationship with a student who can't control her lust. However, the series of acts was witnessed by her colleague teacher. A colleague's teacher's attitude changes suddenly... On that day, the teacher life of a female teacher "Hana" changes completely. One day, the sound of a rotor echoes in her classroom while she is taking a test. .
