Ohm was originally a Jinn of a long-forgotten lineage and Empire, She was the 7th in line for the throne, but due to her lust for conquest, quickly amassed prestige on the battlefield, understanding of war logistics and one coup and Parricide later, became the Empress.
She was later tricked by a wandering Immortal into a duel, bound for thousands of years in a pocket dimension, only recently breaking free by corroding her dimensional shackles