Ueda Kageyama

Ueda Kageyama (影山　上田;), born Takashi Ueda (上田　岳士;) is the half-brother of Touji Kageyama, born to a different father but the same mother. Ueda never divulges this information, or his true name, to his younger brother, thus Touji lives believing Ueda is related to him by blood fully. He decides to take on his previous father's surname as a first name when his mother remarries. He is arrested at the age of 30 after being the only witness and prime suspect to a robbery, and has his sentence extended due to being given an incompetent lawyer.

Biography
Takashi, as he was born, was born to Mr and Mrs Ueda. A short number of years later, seeing her marriage to be loveless, his mother cheated on his father and conceived another child, before divorcing and going on to marry the father of her new child, taking custody of Takashi. Still respecting his father, and not wanting to confuse his new younger brother, Takashi adopted his father's surname and had his surname changed to that of his new family. From a young age, perhaps out of a regret for his father's situation, Ueda had the desire to help others and become a public or civil servant, but his hectic family situation caused him to fall behind in school and lack the support to train and learn to achieve this position. He would later attend a college, but due to his past, failed to succeed in becoming a civil servant, despite having the ability and intelligence to do so. He instead became a tradesman, seeing it as another way to help others.

He realised the extent that his younger brother Touji admired him. Originally unsure and aloof toward Touji due to his association with his mother's affair, he began to warm to Touji as the young, wide-eyed sibling clung to him for support and advice, becoming his role model.

Continuing a comfortable life as a tradesman for wage enough to live a mediocre but contented life, Ueda's life would eventually see a turn for the worse when a regular visit to the store was interrupted by a robbery. As the clerk was eating their lunch and the security cameras deficient due to the size of the store, Ueda was framed as the culprit by scapegoat, possessing no alibi and no other witnesses to corroborate his defence. Originally only planned a relatively short sentence, due to the incompetence of his appointed lawyer and more evidence that could incriminate him, his sentence was extended. The news of this evidently broke Touji's resolve and sense-of-self, causing him to become a real criminal out of spite for the failings of the justice system, but also mostly out of a confusion of his emotions and a lack of direction without the wisdom and guidance of his older brother.