Bao serves as a supporting character in the original video animation *Birth*, operating within a quartet of mercenaries traversing the post-apocalyptic planet Aqualoid. This world lies in ruins following devastating assaults by enigmatic entities called the Inorganics. Tasked with unlocking an ultimate weapon capable of either saving humanity or annihilating it, Bao and his allies journey across Aqualoid’s perilous terrain, engaging mechas and alien races along the way.

The central narrative follows mercenary Nam, who discovers a mysterious sword and triggers a planet-wide hunt by the Inorganics. Bao contributes to the ensemble’s efforts to unravel the sword’s secrets and determine their world’s fate. Themes of survival and planetary renewal underscore the story, with the title *Birth* signifying either Aqualoid’s destruction or the emergence of a new existence.