Miss Night and Day

Ji-ung questions Mi-jin while Ko Won investigates Sun, both suspecting something's off. Sun encounters a dilemma when she gets drunk at a work outing.

Ji-ung tracks a suspicious person working within his office. Mi-jin, attempting to look into Ji-ung's document, shares an intimate moment with him.

After Ji-ung reacts unexpectedly to Mi-jin's move, she avoids him out of sheer embarrassment. Ji-ung decides to investigate a suspect in his own way.

The investigation into the hospital yields suspicious evidence. Ji-ung begins to feel uncomfortable about Mi-jin and Ko Won's relationship.

Baek Cheol-gyu looks into the connection between Sun and Mi-jin. During a raid at the hospital, Sun finds herself in a dangerous predicament.

After Mi-jin oversleeps, she faces her family and Ji-ung as Sun — having to confront her secret. But soon, she deduces the identity of the killer.

As Mi-jin tries to save her father, she finds herself in danger — forcing Ji-ung to spring into action to track her down before it's too late.

With nothing left to hide, Mi-jin contemplates her future. After she testifies in her attacker's case, Mi-jin and Ji-ung reconsider their relationship.