Hybrid x Heart Magias Academy Ataraxia

Hida Kizuna has the HHG (Heart Hybrid Gear) ability, but it’s too weak to make him stand out. At his older sister’s request, he transfers to a strategic defense academy where students wield their own HHG powers to battle invaders from another world—often while piloting in notably revealing outfits.

Kizuna can’t keep up in combat, but his sister proposes a different role for him: intimate, erotic encounters with the girls can restore their energy and help them power up. Thrown into a school filled with high-stakes fighting and constant awkward situations, Kizuna’s new life quickly becomes as embarrassing as it is unusual.