Full Metal Panic! (2002)

Kaname Chidori enjoys her status as one of the top girls at her high school, but her rising fame brings unexpected danger. Unbeknownst to her, a group of terrorists plans to kidnap her, believing she has the extraordinary abilities of “the Whispered.” To protect her, Sousuke Sagara, a skilled soldier from the secretive anti-terrorism unit Mithril, goes undercover at her school. While he excels in piloting advanced mechs, navigating the complexities of teenage life proves to be a far greater challenge than any battlefield.