In "Mask" Joo Ji Hoon learned about the existence of Byun Ji Sook.
On the 13th episode of SBS Wednesday/Thursday drama "Mask" (script Choi Ho Chul, director Boo Sung Chul, Nam Gun) broadcast on July 8th at 10PM, Byun Ji Sook (played by Soo Ae) and Choi Min Woo (played by Joo Ji Hoon) were shown to receive education.
On this day, Choi Mi Yeon (played by Yoo In Young) called in the people that had been working with Byun Ji Sook at the department store. He had an educational session and here, Byun Ji Sook called Choi Min Woo.
While Choi Mi Yeon called Byun Ji Sook out, the employees of the department store talked about the fact that Suh Eun Ha and Byun Ji Sook looked really similar. Hearing about this, Choi Min Woo asked about details.
Afterwards, the employees said, "There was a person that worked at the department store. Her name is Ji Sook. She looks exactly like the madame." "Stop now. Byun Ji Sook has died a while ago." With that, they talked about the resemblance between Byun Ji Sook and Eun Ha.
Later, Choi Min Woo looked at Byun Ji Sook looking around the café. He thought about the words of the employees and tried to ignore these things.
