Animal Kingdom (S01E02)

Hyun-heup arrives at Bangju High School after getting an enigmatic text. There, he unexpectedly meets Seon-ah, his former middle school classmate and Ji-wook's niece. Unfortunately, Seon-ah is enduring relentless bullying from her peers. As the harassment escalates one day, she stumbles upon a peculiar pair of glasses hidden in her locker...