Leyu Yoshida

Leyu Yoshida was a mutant and the sister of Shiro Yoshida.

X2: X-Men United
Stryker had files of Leyu Yoshida and other mutants at his base at Alkili Lake.

Trivia
In the comics Leyu Yoshida is a mutant called Sunpyre and the sister of Shiro Yoshida this has not been explored in film to date.