Finally know who White Rock Shooter is, with help of Josefin san. It will be in the PSP game, Black Rock Shooter The Game, which will be released on summer of this year. If you wanna know more about it, please check Dannychoo.com here. Also I put up a trailer of the game, which I know from Josefin san. Arigatoo, Josefin san! ^^

-Cong