Eternal Undying Chronicles - Chapter 40 - : The Witch

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist “I am the real summon master.” Takuma gets slave-turning magic used for summoned beasts cast on him by the girls –

The strongest King of Soldiers returns to the city of flowers, becoming his fiancée's cohabiting bodyguard!

A world full of magic and wonders, where dragons stand for metals, sprites stand for farming, knights cultivate qi, mysterious wizards dwell. In this world, a man who had transmigrated into the body of a baron, follows the prompts of mysterious symbols to change his destiny.

- Description from Novelupdates

I got the weakest skill Tamer from God. Because my life is in danger, I decided to leave the village and go on a journey! While on a journey I discover a monster that can be tamed! It’s just a weak slime, that can die with only a poke. Various things are scattered on the ground along the way. When I picked it up, it became something amazing. I’ll turn my life around and find a place to live peacefully!