Title: Masou Gakuen HxH / Hybrid x Heart Magias Academy Ataraxia
Author: Kuji Masamune
Illustrators: Hisasi, Kurogin
Genres: Action, Comedy, Ecchi, Fantasy, Romance, School, Sci-Fi, Harem.
> Hida Kizuna possesses the HHG (Heart Hybrid Gear) ability, but it is not strong enough to make him particularly important. His older sister calls him to transfer to a strategic defense school, where many of the students (many of which are large-breasted girls) use their HHG abilities to fight invaders from another world while wearing extremely skimpy pilot outfits. Kizuna's fighting ability doesn't measure up, but his sister has another plan—apparently having erotic experiences with Kizuna will allow the girls to replenish their energy or power-up. It looks like his new school life is going to be full of embarrassment
Epubs are from justlightnovels, I edited the metadata to make them more consistent.
Vol.13 is the epilogue, Vol.14 is an afterstory. NU still shows this series as "ongoing" but I don't know whether further volumes are really planned.
I will be uploading a bunch of novels that are either incomplete or not on Nyaa at all to get them out of the sketchy DDL sites dimension. Please help seeding since they are rather small files.