"The Night Watchman" Jung Ilwoo and Go Sunghee met for the first time.

On August 12, on the fourth episode of "The Night Watchman," Yi Rin met Do Ha while running surprised from seeing Nae Kwan bathing.

Yi Rin fell on his back and ran into Do Ha. He ran away quickly, but their bracelets showed.

"The Night Watchman" is about people who do not believe in ghosts, those who use ghosts, and those who try to fight away ghosts. There is a love story in regards to the three different groups of people.