[Kdrama 2025] Good Boy Cast & Filming Location & Plot Summary Ending

JTBC’s weekend drama “Good Boy” (2025) is a comic action youth investigation series about Olympic medalists who become police officers through special recruitment, trading their medals for police badges as they take on a world rife with injustice and foul play. Medalists from various sports—boxing, shooting, fencing, discus throw, wrestling—come together as a special task force, fighting against heinous crimes and social corruption, while searching for true justice and courage.

The main character, Yoon Dong-joo (played by Park Bo-gum), is a former Olympic boxing gold medalist who becomes a police officer, overcoming past wounds and risking everything for justice. Ji Han-na (played by Kim So-hyun) is a “shooting goddess” and former shooting gold medalist, now a police officer known for her cool-headedness and charisma. Oh Jung-se, Lee Sang-yi, Heo Sung-tae, and Tae Won-seok also appear as uniquely talented police officers, delivering teamwork, growth, laughter, and thrilling action.

Good Boy 2025

Title: 굿보이 2025 | グッドボーイ 2025
Genre: Sports, Comedy, Romance, Action, Crime, Youth, Coming-of-age
Broadcast Channel: JTBC (simulcast on JTBC2, JTBC4)
Broadcast Period: May 31, 2025 – July 20, 2025 (scheduled)
Airtime: Saturdays at 10:40 PM, Sundays at 10:30 PM (KST)
Number of Episodes: 16
Planning/Production: SLL, Studio&NEW, Drama House Studio
Director: Shim Na-yeon
Writer: Lee Dae-il
Cast: Park Bo-gum, Kim So-hyun, Oh Jung-se, Lee Sang-yi, Heo Sung-tae, Tae Won-seok, and others
Filming Period: March 21, 2024 – February 11, 2025 (pre-produced)
Streaming: TVING, Netflix, Wavve, Disney+, Coupang Play, Prime Video
Rating: 15+ (suitable for ages 15 and up)

[Kdrama 2025] Good Boy Cast & filming location & plot summary

Drama Good Boy Cast

Yoon Dongju (Park Bo-gum): A medalist who became a police officer through a special recruitment program, returning after 11 years. Blessed with natural endurance and fists, he won a gold medal in boxing but, after a single incident, fell from glory and started his second life as a police officer in the Violent Crimes Special Unit. Though initially frozen in this unfamiliar world, the rampant injustice and cheating awaken his dormant fighter instincts, and Dongju throws himself into justice without a second thought.

Ji Hanna (Kim So-hyun): A former gold medalist in shooting and now a corporal in the Violent Crimes Special Unit. She was called the “Goddess of Shooting” during her athlete days and enjoyed celebrity-like popularity, but also faced many anti-fans and misunderstandings. After a sudden retirement, she fulfilled her dream of becoming a police officer like her father. Now, her gun is aimed not at targets, but at cruel villains.

Min Jooyoung (Oh Jung-se): A level 7 customs officer at the Korea Customs Service, recognized for his diligence and solid work performance with a commendation from the commissioner. By day, he wears a gentle smile and plain suits, but by night, he becomes a shadow of evil ruling over Inseong City, showing relentless wickedness.

Kim Jonghyun (Lee Sang-yi): A former silver medalist in fencing who became a sergeant in the Violent Crimes Special Unit after an injury ended his athletic career. He graduated at the top of his class from the police academy and, after joining the special unit, wields his police baton as skillfully as a sword.

Go Mansik (Heo Sung-tae): A bronze medalist in wrestling and the team leader of the Violent Crimes Special Unit. He endured his athlete days with perseverance and tenacity, and now, drawing on experiences that greatly benefit his police work, he serves as a pillar of support for his team members.

Shin Jaehong (Tae Won-seok): A bronze medalist in discus throw and a corporal in the Violent Crimes Special Unit. As the first Korean to win a discus bronze medal, he joined the force through special recruitment for his family and is a warm-hearted, caring father.

other starring

Hwang Kyungcheol (Seo Hyun-chul): Chief of the Police Department, close friend of Mansik
Oh Jonggu (Jung Man-sik): Former national boxing coach, now CEO of J9 Security
Kim Geumnam (Park Chul-min): Inseong City’s information broker, pawnshop owner
Ahn Daeyong (Han Kyuwon): Team leader of the Inseong Police Agency’s Metropolitan Investigation Unit
Jung Mija (Seo Jeong-yeon): Noodle shop owner connected to Dongju
Jin Kyungsook (Seo Jaehee): Hanna’s mother and insurance agent
Go Jeonga (Choi Myung-bin): Mansik’s daughter
Lee Sang-gon (Kang Gil-woo): Leader of the Geumtokki crime syndicate in Inseong City

Good Boy Filming Location In Busan

The Gyeongil Noodle House filming location was originally an ordinary home that was transformed into a drama set.

Address: Cheonghak-dong, Busan

Busan jin-gu Hocheon Village

Address: Beomcheon-dong, Busanjin-gu, Busan

Busan Cinema Center Street

Address: U-dong, Haeundae-gu, Busan

Busan travel of good boy filming locaiton

Busan Port

Songdo Beach, Busan

Address: Amnam-dong, Seo-gu, Busan

Haeundae Marine City

Address: 1411, U-dong, Haeundae-gu, Busan

Other locations include Yeongdo and Dong-gu in Busan.

Songtan Market, Pyeongtaek

Address: 756-4, Jisan-dong, Pyeongtaek-si, Gyeonggi-do

Hongseong Boxing Gym

Address: 368-5, Ogari, Hongseong-eup, Hongseong-gun, Chungcheongnam-do

Oido Ok Guido Raw Fish Restaurant, Siheung

Address: 1973-24, Jeongwang-dong, Siheung-si, Gyeonggi-do

Other Good Boy filming locations:

Songdo International City Central Park
Yeoncheon Drama Set

Good Boy Plot Summary

episode1

Five national athletes, each possessing world-class skills and ranked among the top three globally in their respective sports, once brought honor to their country. However, after retiring and being specially recruited as police officers, they are confronted by the harsh realities of life. Some are scolded by the police chief, others pawn their medals, and some are reduced to taking promotional photos, unable to fully utilize their talents.

Yoon Dong-joo is demoted to patrol officer after exposing a colleague’s corruption. He teams up with Go Man-sik to assist in apprehending a criminal known as Silver Axe, who is being pursued by another team. However, they repeatedly make mistakes and receive further criticism. Despite graduating from the police academy and aspiring to succeed as police officers, they struggle through difficult days, burdened by the expectations, prejudices, and disregard of those around them.

One day, while waiting in a car, Yoon Dong-joo is hit by an expensive vehicle. At the same time, he witnesses a customs officer being the victim of a hit-and-run. He also encounters Go Jong-gu, a former mentor who ruined the life of a close younger friend, intensifying their conflict. Yoon Dong-joo was once Go Jong-gu’s protégé and trained with him, but after Go Jong-gu’s betrayal for money, Dong-joo became embroiled in a doping scandal, leaving him a disgraced gold medalist.

After repeatedly failing to solve cases and being dismissed by Go Jong-gu, Yoon Dong-joo decides to prove his worth as a police officer by personally catching the hit-and-run suspect. He discovers suspicious circumstances in the customs officer’s case file, and Kim Jong-hyun also finds a connection to the Silver Axe case. Realizing that all these incidents are interconnected, Go Man-sik is taken aback.

The five athletes then each tackle the case in their own way:

Yoon Dong-joo, a boxing gold medalist, subdues criminals with his bare hands.
Ji Han-na, an air rifle gold medalist, fends off intruders at her home with her shooting skills.
Kim Jong-hyun, a sabre silver medalist, uses his fencing skills to confront criminals.
Go Man-sik, a wrestling bronze medalist, persuades an uncooperative team leader with his strength.
Shin Jae-hong, a discus bronze medalist, stops a hit-and-run vehicle with a manhole cover.

Even if the Olympic flame is extinguished and they are forgotten, the hearts of these five former national athletes-turned-police officers still burn passionately. Together, they overcome their own limitations and unite to catch the criminals.

Episode 2

Yoon Dong-joo independently tracks a mysterious hit-and-run case linked to the Geumtokki gang. He joins forces with fellow police officers who are also former national athletes from different sports: Ji Han-na (gold medalist in shooting), Kim Jong-hyun (fencing), Shin Jae-hong (discus), and Go Man-sik (wrestling), forming the elite special team “Goodvengers.” Despite being looked down upon within the police organization for being special recruits, they each demonstrate their abilities in fighting crime. As Yoon Dong-joo gets closer to uncovering the truth behind the Geumtokki gang, he falls into an unexpected trap. The team members begin to share their wounds and stories, gradually building a strong bond.

Episode 3

Goodvengers pursue the Geumtokki gang’s drug trafficking organization. Yoon Dong-joo has his first encounter with Min Joo-young (Oh Jung-se), a key figure in the organization. A teammate falls into Min Joo-young’s cunning trap, putting them in danger, and the team members each investigate the case in their own way. Yoon Dong-joo faces trauma from his past as a boxing athlete, torn between justice and reality. The team grows stronger amid internal police rivalry and external threats. As clues begin to unravel, Goodvengers move in earnest to expose Min Joo-young’s crimes.

Episode 4

Goodvengers launch a raid on an illegal gambling den connected to Min Joo-young. Yoon Dong-joo throws himself into danger to save a citizen at the scene, while Ji Han-na calmly controls the situation. Kim Jong-hyun uses his fencing skills to subdue the criminals. Although the operation seems successful, one team member is injured by Min Joo-young’s counterattack. Within the police, there is criticism of Goodvengers’ reckless actions. Yoon Dong-joo begins to question the path he has chosen. The team encourages each other and gets back on their feet.

Episode 5

Yoon Dong-joo visits the family of a past victim he failed to save and apologizes. Ji Han-na struggles with the burden and misunderstandings surrounding her shooting skills. Kim Jong-hyun suffers from aftereffects of an injury sustained during his fencing career. The team overcomes their respective wounds and unites once more. Goodvengers track the mastermind behind the drug organization and sense another criminal plot by Min Joo-young. Yoon Dong-joo risks danger by infiltrating alone. The team bands together to rescue Yoon Dong-joo.

Episode 6

Min Joo-young hints at the presence of a spy within the police, shaking Goodvengers. The team members begin to suspect each other, and internal conflict grows. Yoon Dong-joo learns of a betrayal by a senior he trusted. Ji Han-na is torn between her convictions as a police officer and reality. Kim Jong-hyun faces a crisis due to a gunshot wound, but the dedication of his teammates helps him overcome it. Goodvengers identify the traitor within and regroup to stop Min Joo-young’s next crime.

Episode 7

Goodvengers raid a large-scale money laundering site operated by the Geumtokki gang. After a life-threatening chase, Yoon Dong-joo arrests Min Joo-young’s right-hand man. Go Man-sik struggles with the expectations of his family and injuries from his wrestling days, but regains strength through his teammates’ support. Ji Han-na builds trust with Yoon Dong-joo, and subtle feelings develop between them. The operation ends successfully, but Min Joo-young prepares another scheme. The team senses a new crisis on the horizon.

Episode 8

Min Joo-young exploits Goodvengers’ weaknesses to try and divide the team. Yoon Dong-joo faces trouble within the police due to past mistakes. Ji Han-na stands up to her superior to defend her beliefs. Kim Jong-hyun faces a family crisis, and Shin Jae-hong sacrifices himself for the team. Each member overcomes their own challenges, and Goodvengers unite once again. Trapped by Min Joo-young’s scheme, the team attempts a life-or-death escape.

Episode 9

Goodvengers infiltrate Min Joo-young’s base and secure decisive evidence. Yoon Dong-joo suffers a serious injury in a one-on-one confrontation with Min Joo-young but refuses to give up. Ji Han-na is taken hostage by the crime organization but handles the situation calmly. Despite being shot, Kim Jong-hyun musters the strength to save his teammates. Through mutual sacrifice and dedication, the team overcomes the crisis and succeeds in bringing Min Joo-young to justice, though he is already plotting another scheme.

Episode 10

Yoon Dong-joo pursues the forces behind Min Joo-young, confronting corruption within the police. Ji Han-na exposes injustice within the organization to uphold her beliefs. Kim Jong-hyun overcomes family conflicts, and Shin Jae-hong makes amends for past mistakes. Goodvengers block Min Joo-young’s money laundering and arrest key members of the crime syndicate. Yoon Dong-joo once again risks his life for justice. The team grows in their respective roles, becoming true police officers.

Episode 11

Min Joo-young prepares his final counterattack. Goodvengers are ensnared by his plot and find themselves in danger. Yoon Dong-joo makes a life-risking choice to save his teammate. Ji Han-na reveals her feelings for Yoon Dong-joo, deepening their mutual trust. Kim Jong-hyun returns to the field after recovering from a gunshot wound. Shin Jae-hong and Go Man-sik support the team in their own ways. Goodvengers track Min Joo-young’s money flow and prepare for the final showdown.

Episode 12

Goodvengers infiltrate Min Joo-young’s headquarters at the Geummun Central City penthouse. Yoon Dong-joo puts everything on the line in his final battle with Min Joo-young. Ji Han-na risks her life to save citizens held hostage. Kim Jong-hyun, Shin Jae-hong, and Go Man-sik collaborate with the police to take down the crime organization. Min Joo-young is finally arrested, and Goodvengers realize justice. Though each carries their own scars, the team encourages one another and vows to make a fresh start.

Episode 13

Yoon Dong-joo falls into Min Joo-young’s trap, suffers a serious injury, and becomes a fugitive. The special team members believe in Dong-joo’s innocence and each set out to gather evidence. Ji Han-na infiltrates Min Joo-young’s hideout alone, engaging in a fierce shootout with his gang. Dong-joo narrowly reunites with Han-na, but Min Joo-young’s private soldiers pursue them. The two try to escape through the back of an abandoned factory, but the exit is blocked, and Han-na calls for help via radio. Prosecutor Kang and the team enter the scene without reporting to superiors. Even in a desperate situation, the team trusts each other and fights to the end. Despite Min Joo-young’s schemes and pressure, Dong-joo and Han-na refuse to give up on the truth.

Episode 14

The special team learns of a hidden USB belonging to Min Joo-young and tries to secure evidence of illegal wiretapping, coercive investigations, and insider manipulation. Dong-joo suffers increasingly from boxing aftereffects and physical limitations, while Han-na becomes even more determined to protect him. Min Joo-young prepares another trap to destroy the team. Kim Jong-hyun, Shin Jae-hong, and Go Man-sik each support the team in their own way, reaffirming their wounds and convictions. Min Joo-young’s organization is increasingly cornered, and the special team prepares their final operation to reveal the truth. Dong-joo musters his last strength to overcome his limits, and the team members steel themselves in their respective places.

Episode 15

Goodvengers infiltrate Min Joo-young’s base and secure decisive evidence. Yoon Dong-joo suffers a critical injury in a one-on-one fight with Min Joo-young but never gives up. Ji Han-na is taken hostage by the criminal organization but handles the situation calmly. Despite being shot, Kim Jong-hyun fights to save his teammates. Through mutual sacrifice and dedication, the team overcomes the crisis and succeeds in bringing Min Joo-young to justice. However, Min Joo-young is already plotting another scheme. Amidst confrontations with traitors within the police organization and a mix of trust and suspicion, Dong-joo and Han-na affirm their feelings for each other, growing even closer. The special team prepares for the final battle.

Good Boy ending

Episode 16

At dawn, Yoon Dong-joo and the Goodvengers team infiltrate the Geummun Central City penthouse, now heavily guarded by armed criminals as Min Joo-young’s final scheme begins. Dong-joo checks in with his team via radio and calmly leads the operation. Ji Han-na quietly enters the building to ensure the safety of citizens held hostage. Kim Jong-hyun clutches his wounded arm, while Shin Jae-hong and Go Man-sik each subdue guards in their own way, clearing the path.

On the rooftop, Min Joo-young waits for an escape helicopter, mocking the police until the end. Dong-joo charges at Min Joo-young, and the two engage in a fierce hand-to-hand fight. Min Joo-young tries to play mind games by provoking Dong-joo’s boxing trauma, but Dong-joo overcomes his past wounds and summons his final strength. Their fight breaks through the penthouse’s glass windows and continues onto the rooftop railing. Han-na, Jong-hyun, and Man-sik move throughout the building to rescue hostages and evacuate citizens to safety.

In the end, Dong-joo subdues Min Joo-young and handcuffs him. Min Joo-young continues to sneer, hinting at another traitor within the police organization. Unshaken, Dong-joo says, “It’s over now,” and hands Min Joo-young over to the police. Ji Han-na approaches Dong-joo to confirm he’s safe, and the two share a brief smile. The Goodvengers team congratulates each other and celebrates the success of the operation.

After the case is resolved, the police station holds a ceremony to commend the team’s achievements. Dong-joo completely lets go of his past as a boxing athlete and finds satisfaction in his life as a police officer. Ji Han-na grows into a leader within the organization, guiding her juniors. Kim Jong-hyun overcomes family conflicts, Shin Jae-hong sets new goals based on his field experience, and Go Man-sik once again becomes the team’s core thanks to the trust of his colleagues.

In the final scene, the five Goodvengers stand together, smiling for a photo against the night skyline of Inseong City. Dong-joo says, “What we protected was not just simple justice, but our faith in each other.” Though each carries their own scars and pain, they have now become true colleagues and family. The team vows to continue working together for the safety of citizens and to uphold their beliefs. Under the night sky of Inseong City, the hearts of the Goodvengers still burn passionately.

Kdrama Good Boy Review

The drama “Good Boy” (JTBC, 2025) is a comic action youth crime series about Olympic medalists who become police officers through special recruitment. Carrying their own pasts and wounds, they unite as the Violent Crimes Special Team “Goodvengers” to fight against injustice and major crimes in society. The protagonist, Yoon Dongju (Park Bo-gum), was once an Olympic boxing gold medalist, but after an incident that brought him down from glory, he starts the second chapter of his life as a police officer.

Unable to stand injustice, Dongju becomes a passionate police constable who throws himself into justice. His partner, Ji Hanna (Kim So-hyun), is a corporal and former shooting gold medalist, known as the “Goddess of Shooting” for her cool judgment and fiery passion. In addition, medalists from fencing, wrestling, discus throw, and other sports join the team, each with their own stories and personalities.

They solve major unsolved cases such as the “Golden Rabbit Case,” overcoming past trauma, social prejudice, and their own wounds to find true justice and courage. Blending sports, investigation, comedy, action, and youth, the drama delivers teamwork, growth, delightful humor, and thrilling action. With “police badges instead of medals around their necks,” it tells the story of passionate youth taking on new challenges, growing together, forging friendships, and realizing justice.

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