Picking up right where the cliffhanger left us, episode 3 of Miss Night and
Day throws Mi-Jin into a life-threatening situation. A car driven by a serial
killer nearly runs her down, raising the stakes for her nighttime identity.
Ji-Ung arrives just in time, but the culprit escapes, leaving Mi-Jin shaken but
alive. However, the attacker learns her name, adding a layer of danger to her
already precarious double life.

Meanwhile, Lim Sun, Mi-Jin's daytime persona, grapples with her newfound fame. As a reward for saving top star Ko Won from an attacker, she's showered with expensive gifts. This episode delves into the complexities of Lim Sun's situation. We see her navigate her friendship with Ga-Yeong, revealing her shocking secret – the nightly transformation. Ga-Yeong's initial disbelief turns into acceptance as she witnesses the transformation firsthand.
The episode also explores the connection between Lim Sun and Ko Won. While Ko Won tries to express his gratitude with extravagant gifts, Lim Sun maintains a professional distance. She suggests a simple coffee treat instead, highlighting the disconnect between their worlds.
The investigation into Ko Won's attacker takes an interesting turn. Ji-Ung discovers the assailant is a hater, hinting at a potential motive. This incident triggers a panic attack in Ko Won, showcasing the emotional toll of fame. Interestingly, Lim Sun ends up being the one to calm him down, blurring the lines between her two identities.
Adding another layer of comedic tension, the episode throws Lim Sun and Ji-Ung into an unexpected work situation. Lim Sun is hired as an office clerk for Ji-Ung, a position she ironically couldn't get as Mi-Jin. The hilarity ensues as Ji-Ung, unaware of her dual identity, remains oblivious to the capable office cleaner who confidently assures him of her hard work.
Episode 3 ends on a humorous note, leaving viewers eager for more. Ji-Ung's confusion upon seeing Lim Sun in his office as a cleaner promises some entertaining workplace interactions in the coming episodes. With the secret of her nighttime transformation shared with her friend and a new job as Ji-Ung's clerk, the future holds exciting possibilities and potential complications for Mi-Jin.