Tekken 6 Storyline
Asuka participated in The King of Iron Fist Tournament 5 in order to fight Feng Wei; he sent her father to the hospital in a heap. She was unable to find Feng Wei at the tournament, and her life gradually returned to normal.
Sadly, peaceful days were swept away in the wake of global pandemonium. After learning that she is related to Jin Kazama, the leader of the Mishima Zaibatsu and the man behind the chaos, Asuka decided to enter The King of Iron Fist Tournament 6 to bring him to accountability.Source: tekken.namco.com
Tekken 5 Storyline
From childhood, Asuka recieved trianing in Kazama style
traditional martial arts from her dear father from his dojo. Along with
hid other students, Asuka's father taught her how to defend herself and
insilled in her strong beliefs in justice and integrity. But when an
unknown assailant one day attacked the dojo's students and put her
father in hospital, Asuka's life changed for ever. A Hong Kong police
detective investigating the incident informed Asuka that the
perpertrator was likely to enter the King of Iron Fist Tournament 5, so
in the name of justice, she decided to enter as well.
Source: Tekken 5 manual
