Black Summoner, Vol. 2 (manga)

Ever since arriving in a new world with overpowered abilities—at the cost of his memories—Kelvin has steadily gathered one powerful ally after another. But now, the threat of a demon looms over Parth, City of Peace. As the strongest party in the area, Kelvin's group is tasked with investigating this new threat...only to walk into a life-and-death fight with a Rank S opponent! Luckily, our snarky, fun-loving battle junkie has assembled some of the most formidable allies around to combat them. The exhilarating battle fantasy journey continues as this black-clad warrior and his companions continue to leave their mark upon the world!