Yin Qi locks Pei Yanzhi inside the palace to keep him safe while hunting down Yin Zhou’s hidden fortune.

Matthew and Ye-jin make a pact to work together. When Matthew discovers some pressing information, Ye-jin is forced to make an important choice.

As Ye-jin deals with the fallout of her decision, Matthew invites her to Deokpung Village to get her mind off things — and be his temporary roommate.

Everyone gathers in the village, sparking new realizations and emotions. Ye-jin confronts Matthew about the mixed signals he’s been giving her.

With their feelings revealed, Matthew and Ye-jin explore their new relationship. But secrets from the past start to threaten their newfound happiness.

Seung Ri is shocked to see Gyeol and Eun Ae together, and Min Ho encourages her to win the competition.

Seung Ri warns Eun Ae about rumors at work, and Yeon Ja tells her family she will focus on her own life now.

On the 30th of June, 1997, a mysterious father-and-daughter duo arrived at Yuanlongli. They take the elevator to the abandoned 18th floor. When the security guards arrive, they find only…

Ran Fangxu insists on investigating the route of the disappearance on the 18th floor, while He Yuan Hang believes that directly searching for the missing people would be more efficient….

He Yuan Hang receives a message that someone wants to provide information about the missing father and daughter in person. The informant, Su Yuzhi, says the missing girl is her…

Ran Fangxu discovers the relatives of the Xu family. He decides to split up with He Yuan Hang to visit them separately.

A theft occurs at the mine, and the precinct is setting up a task force. Ran Fangxu is also assigned to it. However, Ran Fangxu insists on continuing the investigation…

Wu Shanlong arrives at Nanshan police station. He Yuan Hang and Ran Fangxu beat around the bush to make Wu Shanlong expose himself. Both of them deduce that Song Qing…

As Eui-ju denies Woo-su’s words made her flutter, a Fields Medal winner visits him. Misunderstood as liking Dong-ju, Eui-ju grows awkward with Go-ya.

Feeling inadequate, Eui-ju writes Deul-i as a villain in her novel. Woo-su considers a research proposal in the US, and the prospect makes Eui-ju sad.

Ji-a is captured by loan sharks. Woo-su gets in trouble trying to rescue her. Just as things look hopeless, someone arrives to save them both.

Dong-ju’s secret is revealed. Eui-ju reconciles with Go-ya, and encouraged by her advice, decides to confess feelings.