Asuka's official story states that she was taught Kazama-style traditional martial arts by her father, a dojo-master near Osaka, ever since she was a small girl. By nature, Asuka believes very strongly in justice and devotes much of her free time to being a "pacifist" vigilante who is breaking up fights. At the time in which the game takes place, Asuka is 17 years old and is a high school student. Asuka returned home from school one day to find that her dojo was in shambles. The students there had been beaten severely and her father was so badly hurt that he had to be taken to the hospital. In the next several days, a detective from Hong Kong, Lei Wulong, came to her and explained that the culprit would likely be entering The King of Iron Fist Tournament 5. In order to get her personal revenge and redeem her dojo, Asuka enters the tournament as well. In the tournament, Asuka managed to beat a Monegasque teenager, Lili, causing a bitter rivalry between the two (although most of the conflicts mainly start from Lili's side). However, she was unable to find Feng Wei, and, as the tournament ended, she returned to her calm and normal life. Her life did not stay peaceful for long though, as Asuka discovered that the man responsible for the terrible war going on all over the world, Jin Kazama, is a relative. She enters The King of Iron Fist Tournament 6 in order to capture Jin.