Moon in the Day S01E01 - Young Hwa Saves Jun Oh

Jun Oh 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 Oh. And this being has only one goal: killing Young Hwa.