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 Hakuowlo and helped the villagers. Hakuowlo found himself becoming an owlo of Kenashikourupe, now Tuskur. He led the newly renamed country fighting off external threats while unravelling the truth behind the world he found himself in, and the truth about himself.

Spoilers for Utawarerumono: Prelude to the Fallen

Hakuowlo was originally a half part of a God named Uitsualnemetia. Taken as a subject by Humans in Project Iceman, he cursed humanity into becoming Tatari. Upset at himself, he was sealed, and his soul was divided into the good half, which would become himself, and the bad half, which would become [Dii]]. After facing his bad half and uniting, he decided to seal himself away.