Akira Kazama is a character from the video game called Rival Schools: United by Fate. She is a the younger sister of Daigo and in the game, works along side with Edge and Gan. The three go off to find Daigo who had gone missing. But, in order to be taken seriously by fellow students and fighters, she dressed up as a boy by wearing a skull motorcycle helmet, and a black biker outfit with spikes and skulls on as well.
Also her real identity isn't shown till the end of the game after the player rescues Diago.