Embarking on our recap and review of "Good Partner" episode 4, we witness Eun-kyung boldly requesting Yu-ri to champion her cause against her husband and Choi Sa-ra. Armed with a comprehensive dossier, ranging from incriminating texts to cherished wedding snaps, Eun-kyung confesses her strategy—hoarding evidence to evade an unwanted divorce, believing the guilty should not initiate it. However, the sight of her husband's betrayal with Choi Sa-ra has ignited a fire within her, fueling her determination to wage the nation's most talked-about divorce battle.
The following day, Choi Sa-ra receives a judicial summons, realizing too late that Eun-kyung had been privy to their affair all along. Similarly, Eun-kyung's husband is jolted by the damning evidence appended to the lawsuit. Intrigued, Yu-ri inquires about Eun-kyung's choice of representation, and Eun-kyung reveals her admiration for Yu-ri's unique perspective, a breath of fresh air in legal battles.
Their next client encounter introduces us to a corporate titan, a CEO embroiled in a contentious divorce. His ex-wife, despite their unofficial separation predating the company's public listing, relentlessly pursues a share of his empire. Simultaneously, Eun-kyung's husband, Ji-sang, and Choi Sa-ra conspire to engage a seasoned criminal lawyer, leveraging Eun-kyung's network of divorce attorneys to their disadvantage. Ji-sang's ultimate goal: sole custody of their daughter.
In court, the CEO's case takes an unfavorable turn as evidence of his continued financial support to his ex-wife, post-separation, surfaces. He confesses his noble intention to uphold his familial responsibilities as the primary breadwinner, but Eun-kyung urges him to sever those ties, admonishing him for "enslaving himself to outdated obligations." Strategically, Eun-kyung postpones the trial, anticipating the powerful testimony of their client's youngest daughter upon reaching legal adulthood, ensuring a dramatic climax to this already tumultuous tale.
Eun-kyung, with a pressing appointment looming, entreats Yu-ri to fetch her daughter from school. Yu-ri, though hesitant, acquiesces, finding amusement in the child's uncanny resemblance to her mother, despite her aspirations to mirror her father. Little does this exchange escape Yu-ri's notice; she's privy to the ongoing divorce proceedings.
Later, fate intertwines as Yu-ri and Eun-ho's paths cross in a night of unbridled revelry, leading to an unintended waking up beside each other in a motel's haze. Guilt-ridden, Yu-ri stealthily departs, leaving Eun-ho slumbering, unaware of the impending awkwardness that would haunt their every encounter thereafter.
The news of Eun-kyung's divorce, like wildfire, spreads across the digital landscape, igniting the ire of the law firm's CEO, who fears for the company's pristine image. However, Woo-jin, ever the diplomat, steps in to quell the storm. In a confrontational meeting with her estranged husband, Eun-kyung stands firm, refusing to settle, only to be met with emotional manipulation and scathing accusations that undermine her maternal prowess.
As the CEO grapples with a personal dilemma—his wife's sudden intervention at the company, coupled with the weight of preserving his hard-earned business empire—he hesitates, torn between justice and self-interest.
At the climax of the legal battle, Eun-kyung and Yu-ri triumphantly present a heartfelt confession, penned by the couple's youngest daughter, baring the truth about their family's fractured past preceding the company's public listing. This revelation seals their victory.
Over dinner, Eun-kyung vows never to relinquish her assets to her former spouse, her determination etched on every word. The following day, Yu-ri, agitated by a court notice labeling Woo-jin as Eun-kyung's 'office husband' and insinuating a prior intimacy, storms into Eun-kyung's office, only to stumble upon a compromising scene between Eun-kyung and Woo-jin. The episode concludes with a door ajar, revealing a moment that alters everything, leaving Yu-ri stunned and the room's occupants in an uneasy silence.
