Chang Wufei is Chinese.He is probably the most ruthless of all the pilots until the end when he kills Treize in battle, he gets kinda soft there. That wasn't the first time he battled Treize though. The first time it was a sword fight and Treize won. He did not kill Wufei though, he said it was honorable of Wufei to get out of his Gundam and battle thats why. Wufei is the only pilot who didn't turn in his Gundam to be destroyed in Endless Waltz. He has piloted Shenlong and Altron in GW, and Nataku Custom in Endless Waltz.