Avrora Deis

Aurora Deis is the origin of Tatsuya’s power. In her original timeline, she possessed a magic so powerful it could destroy the world. This magic, known as (or implied to be the root of Tatsuya’s Decomposition/Restoration), allowed her to rewrite reality itself.

The phrase is likely a linguistic blend of Latin and Russian roots: avrora deis

Aurora is essentially a "time traveler," but her existence violates the laws of causality. In the Mahouka universe, information cannot travel backward in time without massive consequences. Aurora survived the destruction of her timeline by abandoning her physical body and transferring her consciousness (her Psions) into the future, eventually manifesting as a consciousness housed within the body of a young girl in the main timeline. Aurora Deis is the origin of Tatsuya’s power

The first reported cases of Aurora disease date back to the early 2000s, when a cluster of patients in a small town exhibited similar symptoms, including vivid visual disturbances and neurological problems. Initially, the condition was thought to be a localized outbreak of a viral infection, but as more cases emerged worldwide, it became clear that Aurora disease was a distinct medical entity. Despite its relatively recent discovery, researchers have made significant strides in understanding the condition, although much remains to be uncovered. The phrase is likely a linguistic blend of

Aurora’s tragedy is that she gave birth to a child who was designed to survive the apocalypse, but in doing so, she created a being who cannot truly share her feelings. She loves a son who is functionally incapable of loving her back in the same way. She sacrificed her timeline, her body, and her humanity to ensure his survival, only to exist in a reality where she is an anomaly.