Black Summoner, Vol. 6 (light novel)

Kelvin, the battle junkie Summoner from another world, continues searching for powerful opponents even after becoming a Rank S adventurer and defeating the Demon Lord. He receives an invitation to Gaun, the Country of Beastkin, where two things are about to happen: a Naming Ceremony for him as a Rank S adventurer and the Beast King Festival. The former is good and all, but what really gets his blood pumping is the latter, which turns out to be a tournament hosted at the Gaun Mixed Fighting ...