Video : Perfect 10 Liners

Arm, a first-year student, joins the elite "Perfect 10 Liners" and is tasked by his mentor Yipun to manage the popular Engineer Cute Boy page. Reluctantly, Arm excels at the job but unknowingly breaks a rule by uploading a photo of third-year student Arc. Arc, unaware of Arm’s identity, angrily demands its removal, sparking Arm's dislike. However, Arm soon discovers Arc is his mentor, and the two interact frequently. What Arm doesn’t know is Arc secretly likes him.

Meanwhile, Gun breaks a faucet on his first day and is saved by Yotha, though he initially thanks Yotha's brother Faifa. Gun’s fear of the dark leads to a dorm swap with Yotha.

Wine also joins the Perfect 10 Liners but is neglected by his mentor. Faifa steps in, learning Wine has feelings for his ex’s brother Tor. Faifa offers to help Wine practice his approach to Tor.