Hakuowlo

Hakuowlo (ハクオロ) is the main protagonist of Utawarerumono: Prelude to the Fallen. He was an amnesiac man, found stranded and injured in a forest near Yamayura Village. After being nursed by Eruru, Aruruu, and their grandmother Tuskur, he found himself in an unfamiliar place filled with Demihuman. He forgot about who he was and where he came from. He realized he has a mysterious mask with two horns attached unto his face that can't be removed. After being nursed back to health, he was given the name Hakuoro and helped out the villagers.

Spoilers for Utawarerumono: Mask of Truth