The Simple Life of Killing Demons - Chapter 38Book 11:

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.

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…?

Ding Ning was just an ordinary youngster from a small border town in southwest China, but he had learned tremendous medical skills from his masters since his childhood. After graduating from college, he stayed in Ninghai City and tried to seek a job in a hospital there, but things did not go well at first. However, he accidentally saved Shen Muqing who was from a rich and powerful family, and then got involved in the confrontation between Ninghai special police team and a mysterious organization called Vampire Mercenary Group in order to protect Ling Yun who was his landlord’s daughter. It became the turning point of his life. After that, he started an incredible adventure during which he would find out the real identities of his father and masters and discover the secrets behind the mysterious organization Vampire Mercenary Group and the special weapons and tactics team Dragon Soul…
The story tells about how he opened nine apertures, fought with rogues, chased after various pretty girls and established a rich and powerful family by himself. He climbed up to the peak of his life step by step, and finally became medical sovereign.

- Description from Novelupdates

Kyle broke free.He finally punched that guy in the face!But yeah, in return, he and his cronies would beat Kyle to death. Kind of a bad deal, but screw them anyway!He didn't regret punching this guy even once!However, just when Kyle was getting his face pushed in, a powerful Magic Lady intervened and offered him a job. Bit of a weird time to recruit someone, but sure.What was his job?He had to go to a different world and become its Overseer, whatever that meant. This entire deal seemed a bit shady.A world where one person can fight thousands of people.A world where gigantic beasts shattered mountains.Sadly, Kyle was just some random guy. He couldn't shatter mountains. Hell, he could barely fight a single guy.Well, that just meant he had to grow more powerful.And during Kyle's stay in that world, he would realize that he really liked the feeling of breaking stuff with his big hammer.Join Kyle on his journey to become the Strongest Hammer God.