Hyeri and Chung Su Bin strengthen their bond in "Friendly Rivalry."

Hyeri and Chung Su Bin reunite in the new series "Friendly Rivalry," a mystery thriller based on a webtoon. The story unfolds at Chaehwa Girls’ High School, where intense academic competition leads to hidden ambitions and a mysterious death. In previous episodes, the characters faced accusations related to an illegal drug case. However, in episode 11, they put aside their differences to search for Jae Yi's abducted sister, Jae Na, strengthening their bond. The police investigation into the drug distribution continues, with Jae Yi and Seul Gi now under suspicion. New episodes of "Friendly Rivalry" are released every Monday through Thursday at midnight KST.