Isekai Maou to Shoukan Shoujo Dorei Majutsu - Volume 1 Chapter 1.08

He was the guardian with the most powerful talent of this era!

However, no one knew that he had a second template. His swords could slash through the flesh of his enemies and his soul could besiege the spirit of gods!

The others might have seen an obese Sword Saint before, but they definitely had not seen a full time meat shield whose attack was through the roof!

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates

A world where dragons serve as mayors, elves work in sales, and orcs brew coffee.In a city full of enhanced humans and wandering wizards, I became a young girl with psychic powers.“To do something so terrible to a child… These people are despicable.”“Human experimentation related to psychic powers is an international crime, punishable by at least the death penalty. This is absolutely unacceptable.”“Don’t worry anymore. From now on, you’ve got nothing to fear. We’ll take care of everything for you, little sister!”It seems the protagonists have misunderstood something.

“What kind of guardian would you want to be? the one who destroys everything or the one who protects everything?”

Jason, one of the many casualties during a nuclear explosion gets the chance to reincarnate into another world due to his deeds during the war.

He gets tossed to another world due to ending up with the Shadow god as his patron, something deemed impossible.

With a system to guide him in the world of Clover and a family jinxed through the generations, his adventurous life in new world begin.