Episode 6 of "Cinderella at 2 AM" kicks off with a heated confrontation between Ju-won and Seong-min, both vying fiercely for the company of Yoon-seo. Ultimately, Yoon-seo's choice falls on Ju-won, who escorts her to his car by the serene Han River. But Seong-min's persistence knows no bounds; he boldly hops into the vehicle, prompting an unscheduled detour to drop him off near the subway station.
At the river's edge, Ju-won attempts to woo Yoon-seo into a romantic relationship, yet his efforts are met with a firm rejection. Exhausted and frayed at the edges, Yoon-seo snaps at Ju-won's repetitive pleas, ultimately choosing to retreat to the solitude of her home.
Meanwhile, Ju-won's mother's anxiety mounts as he ventures further from the familial nest. Si-won, the elder sibling, intervenes with a portfolio of potential properties, coupled with a gentle reminder from their mother that Ju-won's heart belongs at home.
The following day, the office buzzes with activity as Seong-min arrives to seal his deal for an upcoming exhibition. It's revealed that he and Ju-won share a bond stretching back to their college days. As the team gears up for a celebratory dinner, Ju-won yearns to attend but is sidetracked by the revelation of Seong-min's interest in Yoon-seo and an urgent call to Jeju Island.
At the dinner, Seong-min cements his place as the center of attention, posing for pictures with the team, notably positioning himself beside Yoon-seo, and promptly updating his social media profile, a move that stirs up Ju-won's jealousy. Longing to be part of the festivities, Ju-won finds his hands tied until Si-won, empathetic towards his brother's plight, orchestrates a helicopter ride back to Seoul, turning the evening on its head.
Ju-won's unexpected arrival at the dinner steals the spotlight, and the night takes an exhilarating turn, culminating in a spirited whiskey-drinking competition between him and Seong-min. Amidst the haze of the night, Yoon-seo and Ju-won awaken in an awkward embrace at Seong-min's studio, both feeling the blush of embarrassment creeping across their cheeks.
After a frank confrontation with Seong-min, emphasizing his overstepping boundaries and her dislike for his interference, Yoon-seo heads straight to I-rae's restaurant, seeking solace. To I-rae, she unburdens her heart, lamenting the arduous journey of severing ties with Ju-won, her heart still bound to him in lingering sentiments.
Meanwhile, the bond between Si-won and Mi-jin blossoms in a more vibrant shade than the central couple's, offering a contrast of serendipity. Amidst a comical turn, Mi-jin stumbles upon Si-won in a state of undress, injecting humor into the otherwise monotonous narrative. The following morning, Mi-jin's adoration for Si-won's mother reaches new heights as she cordially invites her for breakfast, idolizing her every move. Touched by Mi-jin's kindness extended to his mother, Si-won subtly conveys his affection by presenting her with a cuddly toy, a keepsake for her upcoming business trip to Paris.
Later, a digital tempest erupts, centering on Seong-min and exposing his concealed identity as the estranged offspring of a prominent politician. The media's barrage accuses him of riding on nepotistic waves to launch his artistic career. Ju-won and Si-won, united in purpose, take charge of managing the media frenzy, while Yoon-seo, concerned, ventures to the exhibition venue to check on Seong-min.
As they stroll along the seashore, Seong-min's confession unfolds, revealing his innocence in any intent to harass Yoon-seo. He narrates a tale of familial strife, his father's brutality, and how he inadvertently contributed to the ruin of a loyal assistant's career, fighting against his family's disapproval for his artistic aspirations. Overwhelmed with guilt, he had reached the brink of despair until Yoon-seo's misguided yet heartfelt texts, mistaking him for Ju-won, brought him back from the abyss. Her kindness ignited a spark within him, revealing the vitality she exuded, and he yearned to meet her.
Together, they indulge in the art of painting, their brushstrokes mingling in harmony. However, the episode concludes on a bittersweet note as Ju-won catches a glimpse of Yoon-seo, gently encouraging Seong-min for persevering against all odds, fostering an appearance of intimacy that stirs within him a complex emotion.
