Episode 5

S1 E5: Eun Oh finds his mother’s hairpin among Arang’s belongings. The two friends decide to look for Eun Oh’s missing mother and Arang’s murderer together. Later, Lord Choi's son stabs Arang while she is sleeping, and he takes her body to a mountain river, following Eun Oh's mother’s instructions. Arang must now escape from the both of them.