Episode 2 of "Pump Up the Healthy Love" kicks off with Hyeon-joong confronting an array of gym villains, from a man whose sweat seemed to pour in rivers to a clique of bossy women who dominated the atmosphere. As the scene transitions, Mi-ran enters the gym for her inaugural training session. Hyeon-joong subjects her to rigorous tests of flexibility, strength, and endurance, among others, and she finds herself ranking at the very bottom of each category. By the day's end, her muscles ache fiercely, a testament to her novice status.
In a voiceover, Hyeon-joong narrates the exhilarating pain of muscle soreness, as the camera cuts to Mi-ran waking up the next day with her muscles even more tender. In the gym, Rosa jogs Hyeon-joong's memory about his previous clients who had deserted him. Soon after, Seong-im, one of the gym's longest-serving members, arrives with a new mirror for the facility.
Over at Mi-ran's workplace, a travel agency, her colleague Ye-jin expresses discontent over being assigned honeymoon packages, always ending up on Mi-ran's desk. Mi-ran brushes it off, insisting she's perfectly fine with the workload. However, Ye-jin's suspicions peak when she spots a message from Hyeon-joong to Mi-ran, mistaking him for her new beau. She even invites Mi-ran to bring him to her wedding, unaware that Joon-seok will also be in attendance.
Later, Mi-ran finds herself in a clothing store, impulsively purchasing a dress far too small for her current figure. Arriving at the gym, she reveals her plan to get a fat-dissolving injection to Hyeon-joong, who promptly convinces her that he can achieve the same result through his training. He offers a full refund if she doesn't fit into the dress by the end of their program.
The scene then shifts to a surreal vision of torment, where Hyeon-joong accuses Mi-ran of overeating, laziness, and not pushing herself to her fullest potential. After pushing through an intense workout, Mi-ran admits she was initially skeptical of his life care package but now trusts it fully. However, Hyeon-joong harbors doubts when he catches a glimpse of the dress she's aiming to wear.
Back at the gym, Hyeon-joong takes over Alex's Zumba class, leading the women through an exhausting routine that leaves them all collapsed on the floor, panting and exhausted.
On her journey home, Mi-ran impulse-bought a snack, only to have her plans for a quick bite interrupted by the unexpected arrival of Hyeon-joon. He sternly halted her snacking spree and even whisked her back for an extended workout session. The following days unfolded in a series of vibrant montages, depicting Mi-ran's relentless dedication to her fitness regime under Hyeon-joon's meticulous guidance.
To her astonishment, she discovered that she could slip into the dress with ease—a revelation that filled her with boundless joy. In her excitement, she sprinted all the way to the gym, eager to showcase her achievement to Hyeon-joon. With a touch of persuasion, she convinced him to accompany her to the wedding.
However, on the big day, Mi-ran arrived at the wedding donning her sister's dress instead. It turned out that Ji-ran had worn Mi-ran's new dress. As her colleagues began to arrive, Mi-ran swiftly introduced Hyeon-joon as her boyfriend, to which he obligingly acceded. When she caught sight of Joon-seok, her heart raced and she contemplated fleeing, but Hyeon-joon encouraged her to confront her fears head-on.
Mustering her courage, Mi-ran approached Joon-seok, who complimented her on her stunning appearance. But just as the room dimmed for a romantic ambiance, glow-in-the-dark words materialized on her dress: "I Love Sex." Joon-seok's expression darkened, and he stormed off, leaving Mi-ran mortified. Desperate to conceal the embarrassment, she crouched down, only for the dress to rip open at the back.
At this crucial moment, Hyeon-joon stepped in like a knight in shining armor, wrapping his jacket around her and gently escorting her out of the wedding in a scene that brought Pump Up the Healthy Love Episode 2 to a dramatic close.
