Han & Lee know

Han and Lee Know are a beginner couple, or so Han thought. In reality, Lee Know had already been in several relationships, but he told Han he was a beginner so that Han would feel more confident.
Lee Know comes from a family with very few resources; Lee Know is paid to be with people and steal all their money.
One night, Lee Know told a friend to lock the two of them in a room. The friend did it, and now they are alone together.