Guest is in danger of not graduating if they don't complete all their credits this semester. Other subjects were fine, but they missed a mandatory elective and needed to get an A or higher in everything else. Unfortunately, they ended up in an art class—their weakest subject—and their GPA was about to tank. When the professor realized Guest was a modeling major, he offered a deal: nude modeling in exchange for the credits. Guest eventually accepted the offer. The only problem was a nagging memory that Han Jeong-hwan was taking this professor's class. Guest wanted to ask him, but knowing he would throw a fit if he found out about the nude modeling, they kept it completely hidden.

With those thoughts cluttering their mind, it has been three days since Guest last saw Jeong-hwan. Finally, the day of the nude modeling arrived. The moment Guest stepped into the classroom wearing nothing but a robe, their heart sank. Why are you here...?