Some call him the Yangsan Madman. Others call him the most exciting new prospect in Korean MMA. But after ZFN 4, Se Hoon Choi made one thing clear. He wants Moon Ho Park. And he wants to be the man who retires him.
This call out did not come out of nowhere. It has roots. It has history. And it has the kind of emotional weight that only comes from two fighters who have already touched gloves, traded shots, and tested each other in front of the entire country.
To understand why this call out matters, you have to go back to where it all started.
The First Encounter: Zombie Trip

A few years ago, Jung Chan Sung, better known as the Korean Zombie, launched a YouTube series called Zombie Trip. The concept was simple. Travel across Korea. Find the toughest fighters in each city. Test them against a professional. That professional was Moon Ho Park.
Most challengers were overwhelmed. Some froze. Some swung wild. Some never made it out of the first exchange.
Then Se Hoon Choi walked in.
He was not a full time fighter. He was running a pizza shop called Pizza Pam. He was not training regularly. He was not preparing for a career in MMA. But he walked in with complete confidence and told the hosts he believed he could beat Moon Ho Park.
And for a moment, it looked like he might.
Choi landed clean counter shots. He chopped at the legs. He pushed Moon Ho in ways no other challenger had. Korean Zombie noticed. Moon Ho noticed. The entire production team noticed. They all said the same thing.
This guy is different.
He was the closest to beating Moon Ho Park on the entire show. And he did it with no real training camp, no professional experience, and no reason to believe he belonged there other than pure instinct and raw talent.
Zombie Trip did not just introduce a new fighter. It introduced a story.
Fast Forward: The Rise of the Yangsan Madman, Se Hoon Choi
Since that day, Se Hoon Choi has changed everything.
He started training seriously. He committed to MMA. He built a real team around him. He fought. And he won.
Four straight victories. Four statements. Four reminders that the Yangsan Madman is not a YouTube curiosity. He is a real prospect.
At ZFN 4, he delivered his most violent performance yet. A first round TKO over Jae Woong Yoon in just one minute and thirty nine seconds. Clean shots. Sharp timing. A finishing instinct that feels natural, not learned.
And when the fight ended, he did not hesitate.
He called out Moon Ho Park.
The Call Out: “I Want to Retire Him”
In his post fight interview, Choi said something that immediately grabbed attention. He said Moon Ho Park never had a retirement fight. And he wants to be the one who gives it to him.
It was bold. It was emotional. It was personal.
This was not trash talk. This was unfinished business.
Choi remembers their first meeting. He remembers the confidence he walked in with. He remembers how close he came. And now, with real training and real experience, he believes the outcome would be different.
Fans believe it too.
If they keep the fight standing, Choi has a real chance. His timing, his counters, his leg kicks, and his pressure have all improved dramatically since the Pizza Pam days. He is no longer a raw talent. He is a professional with momentum.
But there is one question that hangs over the matchup.
The Ground Game Question
On Zombie Trip, Choi admitted something that surprised the hosts. He said he did not enjoy ground work. He did not like wrestling. He did not like jiu jitsu.
That was years ago. But it still matters.
Moon Ho Park is a veteran. He has real grappling. He has real experience. He knows how to change levels, control positions, and slow down a dangerous striker.
If this fight happens, Choi will need to prepare for that. He cannot rely on instinct alone. He cannot rely on power alone. He cannot rely on the standup alone.
This is the test that will show whether he is a future star or a fan favorite with limits.
Why This Fight Matters
This is not just a matchup. It is a story that began on a YouTube show and grew into a real rivalry. It is the student who almost shocked the teacher. It is the raw talent who became a real fighter. It is the veteran who never got a proper farewell. It is the young prospect who wants to be the one to close that chapter. Korean MMA thrives on stories like this. Stories with emotion. Stories with history. Stories with real stakes. Se Hoon Choi vs Moon Ho Park is one of those stories. And if the fight gets made, it will be one of the most anticipated matchups in Korean MMA this year. The Yangsan Madman is ready. The fans are ready. Now we wait to see if Moon Ho Park answers the call.

This guy