Masou Gakuen HxH

Kizuna Hida possesses a Heart Hybrid Gear, but his own combat ability is too weak to make him important on the battlefield. His older sister transfers him to a strategic defense academy where powerful girls use magical armor to fight invaders from another world. Kizuna soon learns that his real value lies elsewhere: close personal contact with the fighters can restore their energy and push their abilities beyond normal limits. The method is constantly embarrassing for everyone involved, but the attacks are real, and Kizuna's unusual support quickly becomes essential to keeping the academy's strongest defenders in the fight.