Episode 4 of "Bitch X Rich" kicks off with Hee-seo receiving an urgent call about the harrowing incident that unfolded at school. Mr. Lee informs Hee-seo that the student who plummeted from the building had company, revealing that Hye-in witnessed the entire ordeal. With a sense of duty, Hee-seo vows to look after Hye-in, as the scene shifts to a distraught Hye-in sitting in the hospital, her paranoia heightened by the traumatic event. Tears stream down her face uncontrollably as the police conduct their grueling interrogation.
Later, as Hye-in ventures back home from school, she encounters Na-yeon's mother outside, who persistently tries to persuade her to assist Na-yeon in gaining admission to the school. Puzzled by this unexpected proposition, Hye-in finds herself in a dilemma. Na-yeon's mother insists, highlighting the impending similarity in their fates as Hye-in prepares to enroll herself.
That evening, Hye-in's father reprimands her for her rebellious behavior and the troubles she's caused at school. She brushes him off and returns Hee-seo's incessant calls. Making her way to Cheongdam International High School once more, Hye-seo presents Hye-in with an enticing offer: a full scholarship to the elite institution in exchange for her silence regarding Hae-in's accident.
Meanwhile, Hae-in clings to life in the ICU, while Do-eon, draped in gloom, stands at the precise spot where Hae-in's fateful fall occurred. His somber presence catches So-mang's eye as he gives a new student a guided tour of the school. So-mang elucidates the intricate social hierarchy of Cheongdam, painting a picture of Je-na as the undisputed queen, ruthless in her bullying of bullies due to her father's position as a school trustee. Hee-seo, despite turning a blind eye to the pervasive bullying, finds himself under Do-eon's scrutinizing gaze, who harbors suspicions about his father's decision to admit another charity case student following Hae-in's tragedy.
Elsewhere, Je-na engages in a heated argument with her teacher, ultimately storming out of the classroom without a hint of apology. At Hye-in's current school, her classmates are astounded to learn of her impending transfer to Cheongdam International High.
That evening, subsequent to her part-time job, Hye-in unburdens herself to Sun-joo about the charity sponsorship, her heart brimming with anticipation for a life transformation. She cleverly sidesteps mentioning the real reason behind the school's scholarship decision, instead treating Sun-joo to a meal as a clever distraction.
The following dawn, a tailor-made uniform for Cheongdam International School arrives at Hye-in's doorstep, which she eagerly tries on. Donning this new attire, she ventures out to purchase a pair of stylish shoes, using her hard-earned savings from her part-time gig. However, a lingering sensation that she's being tailed disrupts her shopping spree as she ogles the assorted luxury brands.
Suddenly, a girl clad in a cap collides with Hye-in, deftly slipping a note into her designer shoe bag. The note, filled with accusations, claims that Hye-in murdered Hae-in to secure her place at Cheongdam International School, leaving Hye-in utterly stunned. In a rush of panic, she abandons the shoes in the ladies' room and dashes outside, scanning the mall for the capped girl who had bumped into her.
After an extensive search, Hye-in returns to the ladies' room to retrieve her shoes, only to find them missing. She scours the room in vain, until she spots a girl walking in wearing an identical pair. It's Je-na, and Hye-in immediately accuses her of theft. Je-na, taken aback by the accusation, mocks Hye-in mercilessly.
The episode culminates in a dramatic scene where Hye-in, her patience worn thin, grabs Je-na by the hair, demanding the return of her luxury shoes.
