Song U-yun returns to university after a break. At the administrative office, he encounters Woo Jin-hyeong—a teaching assistant with a mysterious aura—and feels an immediate attraction to him. After U-yun reveals his feelings, the two get together and move into a studio apartment.

A rumor is spreading across campus that U-yun is the faculty heartthrob. When Jin-hyeong teases him about it, U-yun blushes and explains why he started paying so much attention to his appearance in the first place. Later, U-yun apologizes for having to cancel their dinner plans due to a last-minute group project meeting.