Rowan_Eternal

After saving one world from a Demon God and earning the trust and devotion of a perverted goddess, Sol is rewarded with all his powers intact and sent back home with the goddess accompanying him as his personal slave. 
 
That was supposed to be the end, the Demon God was supposed to be his last great trial. However, they are both summoned once again to an even more doomed world, almost immediately after returning to Sol's. 

This time around, Sol refuses his role as hero.

Unable to find rest, he turns his wrath to the pantheon of gods in a spiteful quest to become the strongest being in existence, followed by his slave who took his place as hero. 
Battles await, secrets of old begin to scurry into the light when the world as he knows it begins expanding beyond the visible horizons of reality and deep into the fringes of eternal darkness.

Terrible consequences lay beyond the borders of the known.

The World's most Overpowered Side-Character

"Once again, I find myself falling into comfort because of how happy everyone seems," Sol sighed, resting his hand on Dina's leg and his forehead against her bosom.

"We can't leave everything in the state that it's in, though," Dina hugged his head, caressing his hair with a sigh. "Master... you made a promise."

"I know," He nodded against her. "I know, it's just..."

"You have said it before," Dina smiled, sighing with her chin atop his head. "If everything was like this all the time, life truly would be a blessing."

"It already is," Sol smiled and wrapped his hands around her waist. "It already is."

"How long has it been?" Dr'ul asked, seated in the lounge of the Vestic estate on Earth. "I know that he has already arrived because I have not seen Alpha since the day we sensed his presence."

Your Days Are Numbered.