Cruz Schild is a character from NEEDLESS.
A normal human, and the last survivor of a rebellion group. Compared to the rest of the cast, Cruz is very mellow and lacks confidence. This nature also causes him to be easily bossed around by Blade and Eve, though he tries to look on the bright side whenever possible. Though he can't fight, he's proven to be useful in battle by analyzing and finding a weakness in enemy techniques. Often referred to as "Yamada", since Eve couldn't remember his name.
Reason For Cross-Dressing
Cruz crossdresses to fit into an all-girl's school. Afterward, his clothes are ruined and he has to continue wearing them. He eventually even becomes a girl.