O-jirō, younger brother of protagonist Q-Tarō, inherits their shared obake lineage yet communicates through a singular peculiarity: his speech consists solely of the phrase “bakeratta.” Though he comprehends human language fully, this linguistic restriction renders him reliant on Q-Tarō, the sole interpreter of his intent. Their dynamic intertwines O-jirō’s narrative agency with his brother’s mediation, anchoring his social interactions to this fraternal bond. Existing records confine O-jirō’s characterization to this communicative trait, with no elaboration on his backstory, growth, or roles in alternate media. His documented presence remains absent from spin-offs, adaptations, or supplementary materials, leaving his broader narrative influence undefined.