Black_Phoenix5

Griffin, a very feared mafia, must experience something unusual when he is 20 years old. A strange message appeared in front of him as he fled from the pursuit of a group of people with his younger sister.
As if things weren't bad enough, he fell off the top of a building, but woke up in another world filled with mana, wizards, monsters, magical creatures from fairy tales. And most confusingly, there is a system that keeps him getting stronger.
How will Griffin survive in this other world? And what mystery brought him to that world?
Welcome to the Strongest Magic System.

Table of Strongest Magic System

Table of contents

Volume 1