The fourth episode of "Bitch X Rich" season 2 kicks off with a bombshell as Hae-in confesses to Hye-in that her amnesia is a mere façade. The revelation sends shockwaves through their dynamic, escalating into a heated confrontation when Hae-in accusations fly, charging Hye-in with exploiting her plight to gain entry into the elite Diamond 6. Hye-in, defending her actions with fervor, finds herself entangled in a physical altercation with Hae-in, culminating in a dramatic plunge into the pool as someone stealthily captures their struggle on camera. Emerging from the water, Hye-in manages to break free and dashes away, leaving Hae-in behind with a stern warning to lay low.
Elsewhere, Jin-wook finds himself battling to breach Jenna's emotional fortress. News of his tumultuous upbringing as an illegitimate child spreads like wildfire through the school corridors, leading to a chilling ostracism from his peers. Yet, Jin-wook remains unperturbed, only to face Jenna's rejection head-on. Meanwhile, Sa-rang extends a kindness to the drenched Hye-in by buying her food, inadvertently leaving his bag behind. Inside, Hye-in discovers Si-eun's phone, planting the seeds of suspicion.
The following day, the online sphere erupts with a scandal as Black Dog unveils a video exposing the private social media profiles of Diamond 6 members. Unbeknownst to all, Black Dog has been extracting money from Hee-su under the threat of exposure. Though Hee-su complies with the extortion demands, she vows to uncover Black Dog's true identity without delay.
Amidst this turmoil, Hye-in confides in Jenna about her possession of a compromising video and Si-eun's sinister blackmail scheme. As Jin-wook hosts a birthday bash, tensions flare when another of Si-eun's videos surfaces, leaving Hye-in on edge, fearing it might implicate her—fortunately, it does not. Simultaneously, Woo-jin confronts Hae-in, who persists in her charade of amnesia, with Sa-rang observing the exchange from a discreet distance. Unfortunately for Hye-in, Bo-seok proves to be a persistent thorn in her side, shifting his attentions from her to Hae-in.
Before the much-anticipated bash, Jenna thoughtfully dispatches a stunning dress to Hye-in, intended for her to don at Jin-wook's soiree. Meanwhile, Hae-in persists in a perilous game with Do-eon, manipulating him to secure an entry to Jin-wook's exclusive gathering.
On the fateful evening, Hye-in arrives, resplendent in the gown Jenna had so thoughtfully sent. She bumps into Do-eon and inquires about Hae-in's wellbeing. Elsewhere in the venue, Woo-jin taunts Hae-in, casually mentioning Do-eon's expulsion from Diamond 6. In retaliation, Hae-in subtly drops a hint, suggesting that Yul-hee was the one who attempted to harm her.
As the party unfolds, Bo-seok finds himself overwhelmed by excessive libations, vomiting abruptly. On the dance floor, Sa-rang and Hye-in steal the show, their rhythm and energy earning them a vintage champagne bottle as a prize. Jin-wook attempts to engage Hye-in in conversation, but Sa-rang deftly diverts the topic. Later, tensions rise as Woo-jin and Jin-wook narrowly avoid a brawl.
Jenna arrives fashionably late, making a grand announcement that leaves everyone aghast: her engagement to Jin-wook. This revelation catches everyone off guard, and Yul-hee sees an opportunity to exploit the situation. It transpires that Jenna had deliberately chosen a dress for Hye-in that mirrored Yul-hee's style, prompting ridicule towards Yul-hee when Jenna mocks her fashion sense. Amidst the laughter and drama, Hye-in finds herself caught in a delicate balance between these two powerful circles.
