Martial King's Retired Life - Chapter 26Book 15:

Vegeta travels to the Marvel Universe.

For more than ten years, Vegett has grown from a young man who first came to the universe to survive among the major forces to become the only god among the six gods in the universe who is not the innate god – the God of Destruction.

Along with eternity, swallowing stars, death, infinity, and annihilation, they are called the six true gods of the universe. Title – Destruction.

The universe is far more complex than imagined. Not only the local gods of Marvel, the god group, the eternal titans. There is even an angel civilization, a demon civilization, and even Karl, the god of death in the Styx galaxy. The sun god of the heavenly civilization.

Devil Death, but his subordinate gods, Keisha, Thanos, you need to be respectful when you see him.

- Description from novelbuddy

This story is centered around the man named Yi Ji-Hyuk, who has spent 1000 years in a Medieval Western fantasy-like world before returning back to the modern-day Earth. When he returns, he finds that his home is facing monster threats, and that humans with superpowers have appeared to protect the innocent people of Earth.

— Doing good deeds brings blessings.— If actions meet societal standards, user ‘Jeong Da-on’ will have their restrictions reduced.Blessings for doing good deeds? Even if I was the Demon Lord in my previous life?It’s been 19 years since I ended my tumultuous life as the Demon Lord and reincarnated on modern Earth.I was caught by the system and forcibly turned into a Hunter. And now I have to do good deeds to regain my original abilities?“Hmm… Beating bad guys to death counts as a good deed, right?”That doesn’t sound too bad.Modern society is the perfect place for a demon to thrive, after all.