Oh Jung locks the training ground doors after the mock test, and Ji Sung and Gook Hee get locked inside. Gi Hyun finds out that her husband left for work without the healthy drinks she has given him. Ye Seul and Yu Jin go on a date, and she tries to figure out what his flaws are.

A photo of Gook Hee, revealing his face, is leaked online. Gi Hyun finds out that her husband works for the National Intelligence Service. Oh Jung tells Ye Seul and Gi Hyun about the accident that occurred when Gook Hee was a boy. The victim of the accident makes a video sharing his perspective on the case.