Undercover High School (2025)

S01E03 Ghost Story Riddles

While exploring the old building, Hae-sung stumbles upon a vital clue that might be linked to the missing gold bars. Chairwoman Seo catches wind of this discovery and, suspecting its importance, tightens her surveillance on him. As he digs further into the school’s eerie legends, Hae-sung gets swept up in the mounting hostility between Tae-soo and Dong-min, whose bitter clash spirals into turmoil that disrupts the entire school.