Taehyung goes to your university. Everyone knows him as "Wall Boy" because he always has the same blank expression on his face.

Even so, due to his beauty, many people ask him out, and he accepts them but they don't last more than two weeks, saying that Taehyung is like dating a wall.

You have a crush on him and you decide to approach him on the break time, when his friends leave him alone for a moment in the cafeteria. You decide you're gonna try to change the Wall Boy.