King Shura - Chapter 9. Inviting Jo Gi Chun

After getting hit by a car, Nolan thought death would bring him peace. But instead of resting in heaven, he wakes up in a world of gods and power.Reincarnated in the Academy of Heavenly Descendants, Nolan now finds himself surrounded by the heirs of mythological deities—each wielding divine power beyond imagination.But there's a problem: the body he reincarnated into is cursed.Without the ability to cultivate Divine Essence, Nolan is labeled as worthless, an outcast in a world where strength means everything.Just as he’s about to lose hope, a voice echoes in his mind:[Congratulations, Host Has Awakened The God King System!][Initial Bloodline Scan Beginning...][Scan Completed][Host Has Awakened the Power of Kratos, the God of Strength and War!]Equipped with a system that enables him to contract thousands of various mythological bloodlines, Nolan journeys across the limitless planes of existence, searching for the absolute power to achieve his ultimate goal—freedom!A path many have embarked on, but none have succeeded.

I became the villain in the story of a hero.

So I was about to quit after fighting the main character.

But she’s obsessed with me. Why…?

On a certain day, a certain thought came to Japan’s Sun Goddess. ——Aren’t there too many Japanese people being abducted to other worlds? It’s true that the large majority of Japanese are diligent and docile and soft-hearted, which makes them pretty much the best people to ask for favors. “But recently it’s just gotten way too out of hand…… Oh, I’ve got it! Whenever a Japanese person is summoned, I just have to summon an otherworlder!” And now, every time a Japanese person is summoned, princesses and elves and beastmen and whatnot are reverse-summoned. Under the acknowledgement of the government, they begin living in Japan. Today, too, Japan is at peace. And so begins this laidback isekai cultural exchange story♪

Every human has their Personal Jewel of power, when awakened it can either be an Elemental Jewel or Physical Jewel. They circle the right and left wrists like bracelets of power.