10 nen goshi no HikiNiito o Yamete Gaishutsushitara Jitaku goto Isekai ni Ten'ishiteta - Chapter 5, Part 6. Yuuji, Hearing the Knowledge Request from the Peddler Kevin

The God of this world had grown angry and frustrated yet again.

His world was supposed to entertain him!

It was supposed to be fun to watch!

Yet, every single guy in his world only practiced Magic all of the time!

This was so boring!

"Alright, that's it. I need someone else, someone who actually has some originality to show my world that there's more than just Magic. I need someone that is willing to destroy themselves and others on his path to power. I need someone that doesn't crack under any mortal danger."

"I should check out that other planet. Yes, you!"

Alex was an ex-fighter trying to come to terms with normal life. Sadly, his life ended in tragedy, but before he could enter the afterlife, he was pulled away by a God that wants him to fix his world.

Watch Alex as he dominates the world of Mages and becomes the only Sword God in a World full of nothing but Mages!

This is the story of Ryo, who was reincarnated in the world of swords and magic.It is a story of the royal road to survive using the magic of water attribute.What is magic? What is swordsmanship?How does it relate to the laws of physics that we know?Or what is politics? What is a nation?Why are there many 『kingdoms』 in reincarnation stories? Will republics not work?Can it be written …?Since it is a water-based magician, so it shall start with 『Hydrogen bond』!

The scum’s or villain’s long road of transformation was tentatively set to the world:
The abandonment of the educated youth’s wife (Completed)
The hidden marriage of the scum film emperor (Completed)
The best brother in the world (Completed)
The Phoenix male who destroy the bridge after crossing the river (Completed)
The treasonous general (Completed)
I’m an honest man (Completed)
To become the top scorer in the School of Agriculture (Completed)
The soft rice man’s self-cultivation (Completed)
The whole world is reborn (Completed)
I want to survive on a desert island (Completed)
The stallion male who has seized the opportunity (Completed)
The perverted self-salvation (Completed)
The spring of the loafer (Completed)
The misplaced life (Completed)
The miser career (Completed)
The ghost is out of feeling (Completed)
The Queen’s favorite husband (Completed)
The vicious girl with her godfather (Completed)
I want to be a good person (Completed)
I does not tear up the family (Completed)
The perverted common plant (Completed)
The Mary Sue’s men (Completed)
Every time I was reborn, someone wants to kill me (Completed)
The old people’s counterattack path (Completed)
The global evolution (Completed)
When I became a net red (Completed)
For you, good person (Completed)
His heart had white moonlight (Completed)

- Description from Novelupdates