Nam Dong-Gyun, a university student, never misses watching the nightly live stream of his favorite broadcaster, Alex, who performs sensually arousing acts while wearing a mask to conceal his face. Dong-Gyun often indulges in sexual pleasure as a result of the erotic show and has unknowingly fallen in love with the gay cam boy.
At school, Dong-Gyun meets Ahn Jiwon, the amiable and radiant president of the student council, who invites him to a drinking party. However, the event turns into a failure as Dong-Gyun becomes extremely intoxicated, and Jiwon ends up safely escorting him to his apartment.
While Dong-Gyun tries to recover from the rough night, he notices that Jiwon's half-naked body closely resembles BJ Alex's physique. Overcome with excitement, Dong-Gyun asks if Jiwon is the same person as the broadcaster - a question that elicits an unexpected response. This changes Dong-Gyun's perception of Jiwon, and he will never be able to look at him the same way again.