Hybrid x Heart Magias Academy Ataraxia

Kizuna Hida possesses a unique ability known as Heart Hybrid Gear, or HHG. However, his personal combat strength is far too weak to make him a significant asset on the battlefield. Recognizing his potential in other ways, his older sister arranges for him to transfer to a specialized strategic defense academy. This institution trains students to repel dangerous invaders from an alternate dimension. The school's roster is predominantly composed of well-endowed young women who rely on their HHG abilities to engage the enemy while wearing highly revealing pilot uniforms. Although Kizuna lacks the raw fighting prowess to match his new classmates, his sister has devised an unconventional strategy to utilize his presence. It turns out that engaging in intimate encounters with Kizuna allows the female pilots to restore their depleted energy and significantly amplify their combat capabilities. Thrust into this bizarre arrangement, Kizuna must navigate a deeply embarrassing yet crucial role within the academy's defense operations. His ordinary expectations of school life are quickly replaced by a demanding routine where his unique contribution becomes essential to humanity's survival against otherworldly threats.