Shu is the younger brother of Shang and older brother of Soki as well as the middle child of Fubi and Kyusa Uchiha. Jeaolus of his brother's prodigal talent and his parents affection for him as well as the attention Soki has he harbored his hatred for him. His parents deaths as wells as his percieved notion of Shang hogging powers was one of his breaking points. He attenpted to kill his brother after he became hokage only to be defeated handily and defecting later on.