The Strongest Demon Lord Reincarnated as a Commoner

For ten thousand years, my name was a curse upon the lips of gods and a prayer for those who craved destruction. As Kaelus, the Demon Lord of Ruin, my power blotted out suns and tore reality asunder. I sat on a throne of conquered kingdoms, bathed in the blood of angels, and knew no equal.

But it was all so... boring.

So, I orchestrated my own death, seeking a new life of peace and quiet.

Now, I've been reincarnated as Kael Valerius, a dirt-poor commoner in an age where magic has faded to a pale imitation of its former glory. My "mana aptitude" is ranked as "Unmeasurable"—which everyone mistakes for "Zero." I'm the laughingstock of the prestigious Zenith Academy, a place where bloodline and status are everything.

Perfect. A quiet life is finally within my grasp.

Or so I thought.

But a sleeping dragon is still a dragon. When arrogant nobles provoke me, ancient monsters crawl from forgotten tombs, and self-proclaimed gods threaten my new life, they awaken a power that this world is not prepared for. They don't see the commoner Kael; they feel the suffocating aura of the Demon Lord Kaelus.

And the women... the proud sword princess, the cold-hearted elven genius, the seductive assassin, even a fallen celestial saint... they are drawn to my power like moths to a cataclysmic flame. They see past my commoner disguise, sensing the absolute, terrifying entity within.

They think they can tame me. They think they can understand me. They are wrong.

My name is Kael, and my second life was supposed to be simple. But it seems the universe has other plans. And when a Demon Lord gets annoyed, universes tend to break.