The fifth episode of "Bitch X Rich" kicks off with a poignant prologue, where Hye-in reflects on Je-na's privileged upbringing, highlighting how she had never wanted for anything in life. The narrative seamlessly transitions to a scene of Je-na shopping for an identical pair of luxury shoes that Hye-in had already acquired. Within the confines of the opulent boutique, Je-na unexpectedly encounters her father's mistress, sparking an acrimonious confrontation. Je-na scorns the woman for her promiscuous behavior with a married man, to which the mistress replies that she covets not the money but Mr. Baek's affection alone. Je-na retorts sarcastically, calling her a liar, noting her presence in the luxury store funded by her father's wealth. With her manager by her side, Je-na storms out, leaving the mistress to plea for Je-na to answer her father's calls. Ignoring her, Je-na retreats to the restroom.
Emerging from the stall, Je-na is confronted by Hye-in, who brands her a thief over the shoes. Words turn into blows, culminating in Hye-in leaving Je-na with scratched skin and sans footwear. Hye-in exits the restroom, now in possession of Je-na's shoes, mistakenly believing them to be her own.
Elsewhere, Do-eon stealthily retrieves Hye-in's contact information from his father's cabin at their residence. Hye-in is the charity student poised to attend Cheongdam International High School. Hae-seo nearly catches Do-eon in the act, but the cunning teenager fabricates a tale to deceive his father and slips away unscathed. Meanwhile, So-mang arrives at a nightclub, his face bearing the brunt of a recent brawl.
That evening, Hye-in returns home, her luxury shoes nestled in a plastic bag, while Je-na trudges back barefoot. The following day, Hye-in strides into Cheongdam International High School, her new shoes gleaming. She surveys her opulent surroundings, pondering her place amidst the affluence. Meanwhile, Je-na, her face adorned with band-aids, arrives at her house to find her friends entangled in amorous pursuits. Furious about Hye-in, she tasks her entourage with locating the shoe-bearing girl.
Concurrently, So-mang is tasked with giving Hye-in a guided tour of the school, but Do-eon intervenes, escorting her instead to the tranquil garden. The school is abuzz with shock as the director's son and So-mang appear to be vying for the same girl's affections. Outdoors, Do-eon requests Hye-in's phone number, urging her to reach out should she ever find herself in distress.
Thus, the intricate web of desires, rivalries, and misunderstandings begins to weave its tale at Cheongdam International High School, setting the stage for further drama and intrigue.
From analyzing his KKT profile, Hye-in deduces with astonishment that the girl featured in Da-eon's posts is none other than Kim Hae-in. Coincidentally, she bumps into the very same girl who had slipped her a note at the mall. Upon arriving at her locker, Hae-in discovers the pair of shoes she had arduously purchased from Je-na, but to her horror, they have been deliberately vandalized. Alongside the ruined shoes, a chilling note reads, "Welcome To Hell," sending shivers down her spine.
Realization dawns upon Hae-in: the shoes she had struggled to obtain were not the ones she had initially bought. Meanwhile, the affluent students at school, emboldened by their alliance with Je-na, begin bullying Hae-in mercilessly for crossing Je-na and spilling the beans. Desperate to escape, Hye-in flees from her tormentors, but they relentlessly pursue her around the school grounds, intent on cornering her.
Seeking refuge, she dashes into Hee-seo's cabin and demands answers, confronting him about the bullying she is enduring. Hee-seo responds coldly, reminding her that it was her choice to enroll in the school and hinting that he could revoke her admission if she found the going too tough. A flashback reveals Mr. Lee assuring Hee-seo that Hye-in was innocent of pushing Hae-in off the roof, a revelation that had eased his conscience.
Back in the present, Hye-in lambasts Hee-seo for his lack of empathy and failure to protect her as his student. Disillusioned, she sneaks out of the school building but fatefully crosses paths with Je-na once more. The tension between them escalates into another confrontation, just as the rest of the students pour outside, eager to gang up on the duo.
Je-na seizes Hye-in by the collar, her voice dripping with venom as she declares Hye-in as her prime target for daring to defy her. Haunted by her past research on "Baek Je-na," Hye-in recalls learning that Je-na was feared as the school's most vicious bully.
The episode culminates in a dramatic showdown as Hye-in, driven to the brink, headbutts Je-na with force. As Je-na stumbles back, clutching her bleeding nose, Hye-in dashes away, with the crowd of students hot on her heels, leaving behind a scene of chaos and raw emotion.
