an old man who wants to be an adventurer part 2

It is common knowledge that it is best to become an adventurer when you are young. The magical power that an adventurer's strength is based on will be difficult to develop if you don't train it when you are young. But this man, Rick Gladiator, who became an adventurer when he was over thirty years old, had the combat strength of an S rank adventurer, the highest rank in the world. In fact, Rick has lived an unimaginable life alongside members of the legendary Orihalcon Fist, the strongest adventurer group on the continent. From dragons to vampires, Rick's fighting prowess, trained by his literal "monster" mentor, allows him to defeat one elite adventurer after another who tries to underestimate him.