Moon in the Day

Jun-o is the top star who is loved as the Nation's Boyfriend. To cover up his scandal, he shoots a public advertisement with the firefighters. At the set, he meets Firefighter Young-hwa who is committed to her job. An accident occurs during the break, and a mysterious being that has been following Young-hwa goes into Jun-o. And this being has only one goal, killing Young-hwa.

As soon as Jun-o gets up, he goes to Young-hwa and tries to kill her. However, he fails to do so because of a mysterious shield that protects her. To get past the protection and seek the chance to kill her, he decides to get close to her. Young-hwa finds Jun-o odd, but she tries to understand him, thinking he’s suffering the trauma from the accident.