Bai DaBao first appears in the book 'The Eternal Immortal Domains'. When he was born, a pillar of light shot up into the sky with the aura of the Undying Codex. He was born with the Undying King level of the Undying Codex, surpassing his father.
Bai Dabao is extremely mischievous and gutsy. Unafraid of snakes, beasts and ghosts, he even sneaks out with the urging of his sister (whom he considers a 'tyrant') to capture the same. He jumps at the chance to beat up anyone who offends him. He is described as impulsive, without fear of dying.