Hybrid x Heart Magias Academy Ataraxia

"Hybrid x Heart Magias Academy Ataraxia," also known as "Masou Gakuen HxH," is a Japanese light novel series written by Masamune Kuji and illustrated by Hisasi. Set in a future where Earth is under attack by invaders from another universe, the story revolves around Hida Kizuna, who transfers to the strategic defense academy Ataraxia at his sister's request. He discovers his unique ability to power up girls by engaging in erotic activities. Alongside the other HHG (Heart Hybrid Gear) users, who are mostly large-breasted girls in skimpy outfits, Kizuna fights against the invaders while uncovering a hidden agenda about the destruction of two worlds. This series blends action, sci-fi, harem, and comedy elements. Besides the light novels, it has also spawned a manga and an anime adaptation, with the anime airing in 2016. The series is known for its distinctive premise and light-hearted humor.