Full Metal Panic!
Kaname Chidori's probably certainly one of the girls at her school -- unfortunately, it's her popularity off campus she should be worrying about. Unbeknownst into Kaname, terrorists are respecting her abduction, believing she possesses the coveted abilities of"the Whispered." That's where this picture is entered by Sousuke Sagara. He is a hot shot soldier from the underground counter-terrorist organization called Mithril -- also he's going under cover at Kaname's school to try to keep her safe. There's no training on the planet that could prepare him for high school's warzone, although he might be a genius at the cockpit of an errant Slave mech.