This is a fantasy world, and this is the story of the world's number one adventurer who travels in this world.
Everything eaten by him can be taken out from the palm of his hand and used, even cannons!
Full time hunter!
Attack on Titan!
Naruto!
One Piece!
The angel said: "All will be led by the Iron Eater at the end of time."
Believe it or not is your freedom.