Oda Nobuhiro, born to one of Nobuhide Oda's concubines, is the illegitimate older half-brother of Nobunaga Oda. His birth status excluded him from eligibility as the Oda clan's heir despite his seniority, establishing a clear distinction in succession rights that positioned the legitimate Nobunaga as the designated successor.

Nobuhiro demonstrates consistent loyalty to Nobunaga, intervening protectively during confrontations with their father. When Nobuhide discovers Nobunaga's involvement in thefts of imported goods alongside peasant orphans, Nobuhiro steps in to mediate the conflict. His actions reflect a supportive role within the family dynamic, prioritizing clan stability. He resides alongside other family members at Furuwatari Castle, a narrative choice that amplifies familial tensions by deviating from historical accounts where the heir Nobunaga typically lived separately at Nagono Castle.

His position within the clan remains that of a trusted retainer, maintaining allegiance to Nobunaga from their youth onward without significant character development beyond this established role across episodes or supplementary media.