Episode 4 of "The Nice Guy" picks up right where the last left off, weaving an intricate tapestry of emotions and actions. As Mi-young secures Tae-hoon's approval for her talents, pocketing a cash prize and securing a main stage spot, Seok-cheol arrives at the police station to a startling revelation: Chang-soo has been apprehended for drug possession, the incriminating evidence subtly planted by Tae-hoon's henchmen within his vehicle.
In a move symbolizing new beginnings, Mi-young repays the loan Seok-hee generously extended to her, setting the stage for a rosier future alongside her mother. She uncovers the truth behind Seok-cheol's noble, yet costly, act of valor—beating up her bullies, which ultimately led to his expulsion and a life-altering pivot.
Concurrently, Tae-hoon finds himself ensnared by an infatuation for Mi-young, voraciously gathering intelligence about her. His fascination forms a contrasting backdrop to Seok-cheol's cop buddy, Byeong-soo, who crosses paths with his sister Seok-kyung, initiating a romantic pursuit while also standing in for her in dealings with a menacing gambling boss, threatening him with jail time.
Amidst these intertwining narratives, Seok-cheol ventures to Tae-hoon, hoping to broker peace between him and Chang-soo. However, Tae-hoon remains steadfast in his quest for vengeance against those who wronged his sister, while also expressing a reluctance to strain his bond with Seok-cheol.
Elsewhere, Seok-cheol and Mi-young had arranged a heart-to-heart, intending to unravel the mysteries surrounding the bullies from their past. Yet, fate conspires against them as Mi-young gets caught up in the excitement of her maiden main stage performance, causing her to run late.
Meanwhile, Chang-soo, having been cleared of drug charges following a negative test, harbors a vengeful grudge against Tae-hoon. He hands Seok-cheol a knife, implicitly tasking him with eliminating Tae-hoon, as the episode concludes on a cliffhanger, teeming with suspense and anticipation.
