Bira

Bira is the protagonist of Sword Sheath's Child. He is a young boy who lives in the forest with bears.

Abilities
Blood Iron Demon Arts - Bira inherited Blood Iron Demon powers from his grandpa. They become stronger when he is unconscious.

Relationships
Bira's Grandpa - Bira was raised by his grandpa, known as the Blood Iron Demon.

Tanyu - He treats him like his big brother.