Mary Stayed Out All Night

Mary befriends an indie rock singer in an unlikely way: by almost running him over in her car.

Mary stages a fake marriage in order to avoid getting hitched to a rich and handsome stranger.

Mary begins her 100 days of Jung In in the morning and Mu Gyul in the evening.

Despite finding out about Mary and Mu Gyul's relationship, Jung In still insists on working with Mu Gyul.

Jung In officially declares war with Mu Gyul over Mary.

Screenwriter Lee decides to have Mary help with the script for Wonderful Day when she reviews her notes and opinions on the script.

When Mu Gyul selfishly announces his and Mary's "marriage" to the office, it puts everyone in a difficult position.

When Mary announces her fake marriage with Mu Gyul to everyone, Jung Suk carries out Mary and Jung In's wedding plans immediately.

As their love triangle becomes more serious, Mary, Jung In and Mu Gyul decide to resolve it without their fathers' interference.

Things get complicated when Mu Gyul is dragged into a scandal with Seo Jun.

Jung In and Mu Gyul decide to switch off living together with Mary to determine who the better husband would be.

After finally returning to work, Seo Jun refuses to sing the song that Mary wrote the lyrics to.

Jung In finds out the real reason his father wants him to marry Mary.

Mu Gyul gets kidnapped on the way to his guerilla concert for "Wonderful Day".

The entire cast and crew of "Wonderful Day" go on a group outing into the mountains.

Mary is asked once and for all to choose between Mu Gyul and Jung In.