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

After taking out the Red Sea Egg, Roy didn't hand it to Lilith immediately. Instead, he held it in his hand and observed her expression.

However, he was disappointed. Although he knew that this thing was very important to her, her eyes didn't fluctuate much after seeing the Red Sea Egg, making him a little unsure about what she was thinking.

It had been a few years since Roy brought the Red Sea Egg out of the Abyss. Because he hadn't provided flesh and blood to it in this world, the egg had already degenerated into a seed state. It was only the size of a fist, like an unopened bud. He held it in his hand and asked Lilith, "Can you tell me what this thing is? You two Liliths spent so much effort to get me to send this thing from the Darksiders world to this world. Why?"

Lilith's Request