Seul-gi is disappointed that Jae-yi approached her for another reason. Before she knows it, the midterm exam is approaching, and Seul-gi, who has run out of medicine, obtains it illegally because she cannot get it prescribed at the hospital.

The school is in the middle of a festival, and Seul-gi is trying to trust Jae-yi again. For some reason, Jae-yi looks for Do-hyuk's phone, and there is a shocking video on the phone she gets her hands on.