No noble blood, no natural talent, yet he is the strongest Exorcist.

After being stabbed to death by a random assailant, he is reincarnated into a world crawling with demons. Now an orphan, he begins his second life in an orphanage run by a high-ranking noble family famous for producing Exorcists, the guardians who protect humanity from the demonic realm.

He lacks the advantage of a prestigious bloodline and possesses no innate talent. Nevertheless, to escape death and protect his precious master, he pushes himself through relentless effort, eventually ascending to become the strongest of them all.

This is the tale of a man dismissed as a mere commoner who rises to become the most feared Exorcist, carving his name into the annals of history.