Chang Koehan/Story

Past
Chang was once a feared and violent criminal in Korea. He was spotted by Kim Kaphwan from a prison's surveillance footage and he wanted to use Chang's strength "for justice". Though Chang easily broke out of prison, he was caught by Kim and forced to undergo Kim's "Rehabilitation Project" throughout the series. During this time, he befriends a fellow convict who was also caught by Kim, Choi Bounge. Together, they initially schemed for ways of escape but they eventually mellow out and enjoy their companions' company — with protests saying otherwise.

The King of Fighters '94
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The King of Fighters '95
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The King of Fighters '96
To be added soon...

The King of Fighters '97
To be added soon...

The King of Fighters '99
Prior to the 1999 tournament, Kim's long time friend and rival, Jhun Hoon appeared to assist him with his program. After seeing Kim's ethics and methods of training, Jhun decided that he would show him a more efficient way of management; Jhun Hoon's methods are much more new-age and strange than Kim's simple harsh exercises, including lots of special equipment and activities, such as attending pop concerts. He continues to challenge Kim on his methods of enforcement and his skills as a fighter, to which they agree to work together during this time. During the Team Korea Justice ending, Chang and Choi kills both Kim and Jhun, although it was quickly revealed that it was a daydream and that the two couldn't go through with it.

The King of Fighters 2000
To be added soon...

The King of Fighters 2001
Prior to the 2001 tournament, Jhun got into an accident that injures his neck and back in a street accident (in reality, he was distracted by Athena Asamiya's beauty, and was hit by a car while crossing the street). With Jhun out of commission, Kim brings one of his pupils, May Lee Jinju as an advisor. While it is her job to keep an eye on Chang and Choi, she, unlike Kim, doesn't feel the need to physically punish them on a regular basis, which suited Chang and Choi. During the team's ending, they are praised as heroes for stopping NESTS.

The King of Fighters 2003
To be added soon...

The King of Fighters XI
Sometime before the eleventh tournament, Chang and Choi convince Kim to join the Fatal Fury Team with Terry Bogard and Duck King, as they have been deemed "rehabilitated" by Kim. During the Team Fatal Fury ending, Chang and Choi are seen celebrating with them at the Pao Pao Cafe. Since they have been deemed "rehabilitated" by their original master, Chang and his smaller companion realize that Kim is on the look out for more villains to reshape and worry for the new victims' future.

The King of Fighters XIII


Prior to the thirteenth tournament, Kim realizing that his first "Rehabilitation Subjects" have mended their ways, Kim remembers two other villains that have disturbed him in the past, Hwa Jai and Raiden, and summons them to South Town. Kim believes they are still working for Geese Howard and is intent on changing their "criminal ways", stubbornly remaining oblivious to their actual reform. The new team shocks the media, and it becomes a popular subject of gossip with those who hear it. Because of this, Chang and Choi did not participate in the thirteenth tournament, and did whatever pleased them.

During Story Mode, when the Agents Team members were looking for clues about Those from the Past, Ramón runs into them in the Pao Pao Cafe, where the three have a drink together. After Ash Crimson erased himself and Saiki from history, all memories of him were erased from all who knew him, including Chang.

In the Kim Team ending, Hwa Jai and Raiden pretend to be "reformed" by Kim, and the gullible Kim falls for it. After they part ways, Kim thinks he might have been "too soft" on Chang and Choi. To honor his former teammates and the struggles they went through, he intensifies Chang and Choi's strict training.

The King of Fighters XIV
Sometime and somewhere before the events of The King of Fighters XIV, Chang and Choi are involved in an incident at a bar which lands the duo back in prison. Once there, the two soon encounters the mysterious and enigmatic Xanadu, whom Choi recognizes in being an infamous and dangerous criminal upon sight and through Xanadu's own eccentric yet mesmerizing charisma, both Chang and Choi decide to revert back to their old criminal ways, joining Xanadu in the KOF XIV tournament as they now seek to cause chaos and destruction with their new friend.