Hwoarang is a student of Baek Doo San and really understand the martial tae kwon do.dia use for street fighting. He has a gang who was never defeated. One day one of his gang members lose in a game, because it is not received by this defeat he follows the game to win. During this match, he met with Jin Kazama, and he had ended the game with balance. This is the first time he did not win the game. He decided to make practice harder and will not be lost again. When he visited the dojo, he saw the dojo had been destroyed. After being attacked by Ogre. Disappointed and angry, he joined The King of Iron Fist Tournament 3 to prove compete with Jin Kazama, and avenge Baek Doo San who apparently had been defeated Ogre and deemed to have been killed.
In Tekken 4, Hwoarang joined south korean army conscription. A long time for her busy from one war to another war who, bored with the activities in the military he decided to AWOL (absent without leave) and became a fugitive South Korean government. He heard The King of Iron Fist Tournament 4 and decided to confront rival, Jin Kazama. When the match, Hwoarang was arrested and detained in a military prison before he gets a chance to deal with a rival, Jin Kazama.
In Tekken 5, Hwoarang while awaiting the court's decision. He's taken the Korean embassy and was given a newspaper. After reading the newspaper he said, "I do not believe this, are you sure this is true?" (Hwoarang told the newspaper that Baek Doo San, the teacher survived the attack Ogre). Hwoarang finally decided to complete compulsory military for two months, then train harder and longer participate in the The King of Iron Fist Tournament 5, as eager to deal with Jin Kazama for the umpteenth time. He also had to compete with the teacher who followed the Baek Doo San Iron Fist because he wanted to investigate something uncomfortable in his mind about who the organizers of the championship this time, because the previous organizer (Heihachi Mishima), have been reported killed during the attack Jack-5 massively.