Episode 14 of "Bad-Memory Eraser" unfolds with Shin's triumphant return home, his heart lightened yet heavy with decisions to come. As Gun gently deposits Ju-yeon at her doorstep, the air is thick with playful flirtation, their laughter lingering as he hesitates to depart. Inside, Ju-yeon finds Sae-yan, her eyes clouded with melancholy, as she grapples with the impending farewell. The warmth of their makeshift family is palpable, yet fleeting. Ju-yeon yearns to confide in Sae-yan about Gun's past love, but sleep overtakes the latter before words can be exchanged.
Meanwhile, Shin's exoneration from all accusations should have been a cause for celebration, yet he seeks a year-long sabbatical from his duties. His mother's dissent rings out, unyielding, reminding him of his youthful 27 years and the inevitable retirement looming ahead. His father and Hong, too, employ emotional coercion, but Shin stands firm in his resolve. Only Gun stands by his side, as the brothers engage in an awkward yet heartening reconciliation. Shin deletes Ju-yeon's photograph from his phone, a symbolic gesture of letting go, only to find himself chafing under his mother's constant nitpicking over his diet. Fed up with the petty squabbles, he escapes the domestic fray.
The repercussions of Shin's decision ripple through the Athlete's Village, where Shi-on, fueled by loyalty, confronts a fellow athlete for slandering Shin's name. Guk-bong intervenes, but Shi-on's actions land him in hot water, ultimately resulting in his expulsion.
At the hospital, Han finds himself cornered, compelled to relinquish the directorship to Tae-oh as a desperate measure to buy time. However, Tae-oh's hunger for results is insatiable, demanding the reset surgery in mere days. Ju-yeon holds onto a glimmer of hope, determined to harness Kim's research and mitigate the dreaded side effects. Tae-oh reveals his true colors, coldly stating that the surgery is tailored for her own salvation, shielding her from disciplinary action for withholding information. She calls him out on his lack of compassion for patients, prompting a scathing retort from him about her own indifferent past.
Meanwhile, Gun's unwavering assistance propels Sae-yan closer to unraveling the mystery of her father's whereabouts. Her keen insight from the imposter's revelations uncovers a thread—her parents' humble street stalls and a love story that captivated the local press. Delving into the dusty archives, she stumbles upon the cherished article, adorned with her father's smiling visage. Overcome with joy, she embraces Gun, her gratitude palpable for the invaluable help.
Gun's keen eye also catches the transfer tattoo on Sae-yan's hand, a subtle reminder of Seung-hyun's presence. The memory of the stalker's photos, sealed in an envelope with saliva, triggers a realization. Without hesitation, he alerts the authorities to conduct a DNA analysis, hoping to unravel yet another layer of the intricate puzzle.
As Sae-yan ventures back home, she encounters Mrs. Jeon and her imposing entourage. Desperate for aid, she pleads with Mrs. Kyung, only to be met with scorn and disdain. Mrs. Kyung's bitter words echo, dismissing the significance of a father and branding Sae-yan as a burden. Yet, in the solitude that follows Sae-yan's departure, Mrs. Kyung's facade cracks, revealing a hidden vulnerability as tears stream down her cheeks.
Amidst the chaos, a chance encounter on the road turns fateful. Mrs. Jeon chastises Sae-yan for her recklessness when suddenly, a bike careens into their path. Amid the distraction, Sae-yan seizes the opportunity and flees. The biker, unbeknownst to her, offers a ride, revealing himself as her long-lost father. Their reunion, orchestrated by the village elder's whispers, is nothing short of miraculous.
Their stolen moments together are filled with laughter and simple joys—munching on snacks, indulging in the fragrance of fresh flowers. Her father's heartfelt wish for a life shared together ignites a spark of hope within Sae-yan. But fate has other plans as a stranger's accidental brush sends her father into action, wielding a wrench and disappearing into an alley, leaving Sae-yan bewildered.
Back in the fray of her life, Ju-yeon is immersed in work alongside Han and Kim when Sae-yan's call interrupts, her voice brimming with excitement about her father's reappearance. The unexpected visit from her father, however, brings a storm of emotions. He seizes her phone, determined to shield her from the Jeons' grasp, leaving Sae-yan perplexed yet compliant. Their bond deepens as they spend time in his garage-turned-workshop, creating memories that will forever resonate in their hearts.
Meanwhile, the side effects trial triumphantly concludes, prompting Han to devise a scheme to occupy Tae-oh's attention while Ju-yeon clandestinely rendezvouses with Gun. This clandestine meeting blossoms into a date, imbuing Gun with excitement as it marks their inaugural romantic encounter. For Ju-yeon, however, it holds a bittersweet quality, as she recognizes it as both their first and last date before embarking on her mission to reunite Gun with his true first love.
Yet, the date flourishes amidst their playful flirtations and shared laughter. Despite the joy, Ju-yeon's heart is heavy with the thought of Sae-yan's departure, prompting her to request a meeting with Gun. He consents, but with the condition that Ju-yeon accompanies him, weaving a delicate tapestry of their intertwined fates.
As they engage in heartfelt conversations about their aspirations, Ju-yeon finds solace in Gun's self-assurance and love for himself, while simultaneously grieving the impending loss of his companionship.
The following dawn, Gun embarks on a personal endeavor, crafting a bracelet that echoes Ju-yeon's wish bracelet, a tangible symbol of their bond. While he eagerly awaits her arrival, Han charges Ju-yeon with guarding Gun's side as he maneuvers to divert Tae-oh's attention. But Tae-oh, feigning excuses, slips away unnoticed.
At this pivotal moment, Gun receives a chilling revelation—Shin's stalker is none other than Ahn Hyo-myeong, a notorious criminal with a sordid past of stalking and murder. The photograph that unfolds is a haunting image of Sae-yan's biological father, fueling a sinister narrative.
The scene shifts to Hyo-myeong's eerie basement, where he meticulously curates a macabre collage of photographs featuring him and Sae-yan, interspersed with crossed-out images of Shin. As he gleefully peruses news of Shin's suspension, a sinister grin etches across his face.
As Ju-yeon anxiously awaits Gun's return, Tae-oh cunningly lures him into the operating room, locking him inside and divulging the sordid truth behind the trial—that Ju-yeon was not Gun's first love, but rather the architect of his experiment. Horrified, Han learns of Mouse 109's tragic demise, a victim of Tae-oh's reckless reset experiment, and rushes to the OR without delay.
Tae-oh expertly manipulates Gun, turning him against Han and promising that his reset surgery can restore Gun to his pre-Ju-yeon innocence. Han's desperate plea to Ju-yeon falls on deaf ears as Gun, consumed by despair, ultimately consents to the procedure, marking a devastating climax to Episode 14 of Bad-Memory Eraser.
