I Turned the Ancient World into the Modern Age!

I opened a shop in ancient times.

Everything I sold was modern merchandise. Of course, airplanes, tanks, and Italian cannons counted as modern merchandise too.

This is perfectly scientific.

And so...

I became the all-powerful immortal in people's eyes, the King of Hell who reaped lives, and the devil who toyed with people's hearts.

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.