Minwoo is a student of a University in Seoul. His lecturer, Kim Donghyun seemed so mysterious for him, so he decided to spy him one day. The thing that Minwoo found when he was following his lecturer made him involved into the complicated case. It is too late for him to go backward. Yet he tangled too deep into his lecturer’s world.   ><<>><<>><<>><<>><     

Three couples with same problems. Even though they have same problems, they have their own ways to solve it. The SINCERITY