The Astral Emperor, unrivaled ruler of the world, having masterfully united diverse kingdoms and beings under his dominion, found himself one fateful day reading an enigmatic novel discovered within the depths of his personal library. To his astonishment, the novel's narrative seemed eerily entwined with his grand empire, Solara.
As he closed his eyes in tiredness, he soon found himself in the body of the character of the novel, Prince Leander. The unfortunate prince who died in the starting chapters of the novel.
Thus commenced the bloodstained and merciless journey of The Astral Emperor, now inhabiting the frail and seemingly ineffectual form of a prince, a far cry from his former grandeur.
"Did I really die?"
Like every (Isekai) protagonist, I got reincarnated after getting hit by a hyper-speed truck.
That was an empty and dark life anyway, so I was already looking forward to a decent, unknown afterlife.
After millennia in hell fighting for his survival, Belial claims the throne as the demon king.
After his ascension to the throne, he promises the other demons that he will conquer the mortal realm, a place filled with greenery, food and resources so that his people don't have to fight for survival anymore.
When Belial attempts to ascend to the mortal realm to prepare the gates for the demon army to invade Earth, an error in the guideline causes him to be confused with a summon of a human mage called Leila.
Belial now soul-bound to Leila as her summon, tries to find a way to open the gates to the demon army to invade Earth while simultaneously helping Leila on her quest to revive her fallen family.