Mashle - magic and muscles. Vol. 9 : Mash Burnedead and the trimagicathalon divine visionary final exam
Hajime Komoto
Before his adventure begins, Dai lives in peace as the lone human among monsters on Dermline Island. While he dreams of becoming a hero, a group of fakes shows up to kidnap the Golden Metal Slime! Then, when Princess Leona arrives in need of a hero, Dai is ready to answer her call.