Full Metal Panic

A tie-in to the smash-hit anime series of the same name, the Full Metal Panic! manga is the story of gung-ho young secret agent Sosuke Sagara, assigned to go undercover and protect high-school honor-student Kaname Chidori from a band of international terrorists. Needless to say, Sosuke's background as a counterinsurgent guerilla isn't the best possible preparation for high school!