Agent Lee Gahyeon had a mission: infiltrating in a flat-earther summer camp.

She put on her monitor uniform and introduced herself to all of her coworkers. Two of them, specially, attracted her attention (for they were really attractive). Their names were Siyeon and Minji. By talking to them and the other monitors she found out that they were dating in secret. She decided, then, that she would try to get closer to them.