Hyakuma No Aruji summary:
From "Let's become a novelist"! Reincarnation in another world and rebellion in a duel !!
The young man finished his life in the hospital room and crossed the world.
In a world where those with "power" are regarded as "demon kings" and persecuted, the youth-Melea inherits the abilities and regrets of the hundred heroes killed and is reborn.
After encountering the "demon kings" who are being chased by the nation and learning about the tragedy of the rampant hunting of the demon kings, Melea decides to "aim to be a hero for the demon kings".