Is it Wrong to be a Goblin Slayer in a Dungeon

Another myserious Goblin Slayer appears in the city of Orario, the Hestia Familia will meet the unusual adventurer and team up to investigate strange activaty happening in the Dungeon which is Goblins are causing major hell inside the dungeon, who is leading the goblins, that's the main question, read and follow. Warning: Blood and death.