Hybrid × Heart Magias Academy Ataraxia (魔装学園H×H, Masō Gakuen Haiburiddo Hāto) is a Japanese light novel series written by Masamune Kuji and illustrated by Hisasi.

The plot of the story occurs in the future when Earth is attacked by invaders from another universe through portals, and using weaponry that combines magic and science.

A core is implanted within a person and by calling out the HHG's name, one can summon an armor around them which can effectively combat the Alternate Universe (AU) forces.

His older sister calls him to transfer to a strategic defense school, where many of the students use their HHG abilities to fight invaders from another world while wearing extremely skimpy pilot outfits.

His ability proves to be critical to their success, as he and the other members of the Ataraxia defense academy find themselves engaged in a hidden agenda about the destruction of two worlds as well as to bring back his beloved from sorrow.

Unlike Earth, there they have developed with both magic and science, which makes their technology many times more advanced and is the primary reason for the defeat humanity suffered.

[4] A manga adaptation with art by Riku Ayakawa began serialization in Kadokawa's Comp Ace on 26 June 2015.

The series is directed by Hiroyuki Furukawa, written by Yasunori Yamada, and produced by Production IMS, with character designs by Kana Miyai.