O Vilarejo: O Segredo de Achiara

So Yoon heads for Achiara after looking over her late grandmother's belongings in Canada. She gets hired as an English teacher at Haewon School, but she discovers a corpse in the mountains and gets caught up in an incident.

So Yoon takes Yoo Na, who passed out in front of her door covered in dirt, to the hospital. Meanwhile, Joo Hee finds Ba Woo strange covered in dirt just like Yoo Na and asks him what happened.

Woo Jae is in chaos due to identity reports of the corpse. Meanwhile, So Yoon finds out that her sister's cremation urn is not in the charnel house, and looks for her trace.

So Yoon rescues Yoo Na with the police officers at the substation, and the Young Lady gets arrested at the scene accused of murder. While Woo Jae is investigating the case regarding Kim Hye Jin's disappearance, he finds out a shocking truth.

So Yoon presumes that her sister came to Achiara to look for her birth parents. Gi Hyun is suspicious at the process of So Yoon coming to Achiara. Meanwhile, Woo Jae and Investigator Han get to know that Hye Jin was an exclusive volunteer for Ms. Ok.

Inspector Han finds out something fishy while investigating the relationship between Hye Jin and Chang Gwon, Jisook couple. Meanwhile, So Yoon gets counseling from the adoption agency to confirm her sister's adoption procedure.