Dark Old Demon

Roy's life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
...
It's really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

Custom Made Demon King

<p>It was exceptionally difficult for Astral to make the decision to abandon the city!</p>

<p>A fortress like Dendera Fortress, which could accommodate more than a hundred thousand troops, was enormous. It covered an area of nearly ten square kilometers, and it took almost two years of investing manpower and materials to build it. Once they abandoned the fortress, it would be equivalent to losing all of the investment. It would also put the alliance army in an extremely dangerous position.</p>

A Traitor Among Us