How the World's Strongest Mercenary Conquers Otherworldly Dungeons

“Welcome, hero from another world.” Ryuji Hasumi, the world’s strongest mercenary, is suddenly transported to the heart of an otherworldly dungeon while carrying out a mission. Guided by the echoing inside his head, Ryuji comes across a group of monsters attacking adventurers. With nothing but a knife, he swiftly takes down his target. Then, using an item called , he conjures modern firearms from his own world and with a single shot, strikes a dragon’s weak point and brings it down. “Who the hell are you?” When his bewildered companions demand to know his identity, Ryūji simply replies: “Just an ordinary soldier.” Even mythic-class dungeons are no match for a body honed through relentless training and a mind sharpened by years of combat! And so begins the otherworldly dungeon conquest of a former special-forces mercenary!