The Anime Lad
Sousuke Sagara is a teenage military specialist assigned to protect student Kaname Chidori. The operation requires him to attend her school and appear ordinary, two conditions that prove unexpectedly incompatible. He understands weapons and surveillance. Casual student life is less cooperative. Kaname becomes the unwilling witness to his civilian difficulties.
Super Eyepatch Fox
A secret assignment sends soldier Sousuke into a Japanese high school to guard Kaname. Identify threats. Maintain cover. Survive classroom etiquette. His battlefield training addresses dangerous problems and creates harmless ones. Military action and school comedy share the same mission area, with Sousuke applying one rulebook to both.
Gigguku
Sousuke has the training to survive armed conflict, yet a normal classroom absolutely destroys him. His protection assignment places him beside Kaname, who refuses to tolerate tactical nonsense quietly. Full Metal Panic! slams military action into school comedy and makes Sousuke's deadly seriousness the fuel for both sides!
Father's Basement
The series changes gears between military tension and broad school comedy with very little warning. That instability becomes useful whenever Sousuke applies battlefield logic to harmless teenage life. Kaname supplies the necessary resistance, refusing to become a passive assignment. Their collision gives the premise more character than a standard undercover protection story.