An arson case brings back painful memories of the past. Bong Hee and Ji Wook go out on an arcade date, but run into unexpected company.

Ji Wook is at a loss after seeing the photo on Bong Hee's nightstand, and he decides to delve deeper into the past.

Bong Hee notices Ji Wook's strange behavior as they investigate the arson case. Eun Hyuk goes to Yoo Jung for help.