Transported in an isekai world with his class Fate system

Carried into a world of magic with his class a young man will become invincible and create a legend ...
"You are an expert in magic? It's nothing in front of the magecraft!"
"You are the greatest warrior in this world? Stop my Balmung."
"What do you have powerful warriors? Let me introduce you to my women, slap in the back of the head," aih ", I mean my heroic servants."
Let's see how this man will become the king of the har ... I mean a legendary hero.