Utawarerumono

The main character, after succumbing to serious injuries, faints in the forest, only to be found and helped later on by a young woman named Eruruu. He has no memories of who he is, and furthermore he has a mask stuck to his face that cannot be removed.

The elder of the village he is taken to gives him clothes, and a new name: Hakuoro. He is adopted as one of the villages own members, and is also adopted into Eruruu's family, which consists of herself, her younger sister Aruruu, and the village elder, their grandmother, Tuskuruu.

(Source: MU)