Full Metal Panic!

The life of Kaname Chidori, a popular high-school girl, takes an unexpected turn as she unknowingly becomes the target of terrorist abduction. The criminals believe she possesses the rare and valuable abilities of "the Whispered". To protect her, Sousuke Sagara, a skilled soldier from Mithril - a secret counter-terrorist organization, infiltrates Kaname's school to ensure her safety.Sousuke is an ace pilot of Arm Slave mechs, but his biggest challenge lies not in the cockpit of a machine, but rather within the complex and treacherous landscape of high school. As he tries to blend into the student life and keep Kaname safe from harm, Sousuke struggles with the disconnect between his military training and navigating everyday teenage scenarios. This unconventional mission becomes a learning experience for both characters as they face challenges that require them to adapt their strategies to unpredictable situations while maintaining a sense of normalcy within their school environment.