Synopsis

Ji-wook, still pursuing the truth behind the Seon-ah incident, receives a report about the S-line from Hyun-heup, yet remains skeptical. Elsewhere, Bang Ju-goo, a goshiwon dweller with aspirations of an acting career, discovers a pair of S-line glasses at Mi-seong's residence and experiences a sudden sense of release. This feeling is quickly overshadowed, however, by a potent wave of jealousy when he encounters a woman linked to the music teacher who had once captivated him.