Orphaned at a young age, he was found unconscious drifting in the waters surrounding New Berk and had no memory of who he was or where he came from. In his first few days in New Berk, he was treated as a pariah and viewed as a bad omen by many of the tribespeople. He lived on his own and took to stealing what he needed, which made the people avoid him even more. Eventually, a woodsman and his wife took in the orphaned boy and taught him everything he knows. Olvir is mostly quiet and shy, and it isn't easy for him to make friends. He prefers the quiet and solitude of the forest over the hustle and bustle of the village. However, his dream is to someday learn how to tame his dragon companion and join the Dragon Riders.

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