Yolero is a character in The Legend of Zelda: Breath of the Wild. Yolero is a Hylian who can be found at the Wetland Stable in the Lanayru Wetlands region of Hyrule. He is seen swinging a torch at a hunk of wood.
Yolero apparently believes the hero's legendary weapon to be a torch called the "Master Torch" which he believes to have found causing him to believe himself to be the legendary hero chosen by the "Master Torch" and fails to realize it is just an ordinary torch.
If Link receives the Master Sword and talks to him again, Yolero will ask him what the sword is called, stating that it probably could not even start a fire and if Link responds "The Master Sword" then Yolero will assume it is an "off-brand knockoff of his legendary Master Torch" due to his mistaken belief the hero's legendary weapon is a torch and tells Link to leave him be as he is the legendary hero chosen by the Master Torch. Fortunately for Yolero and the true hero Link, Yolero elects to remains at the stable training with his "Master Torch" instead of foolishly daring to take on the dangers of trying to reach and enter Hyrule Castle to defeat Calamity Ganon armed with only a simple torch, as doing so would likely result in Yolero's death. If it rains, Yolero will run inside the stable to keep dry like everyone else.