Tetsuo Shima

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Kaneda's best friend since preschool and the second principal subject of the story's theme. Tetsuo is shown as a black sheep in the gang he and Kaneda are part of, and quietly suffers from a deeply rooted inferiority complex. He admires his friend yet at the same time strongly resents his own reliance upon him. After his psychokinetic abilities manifest, Tetsuo quickly becomes Kaneda's nemesis; he desires Kaneda's motorcycle (a symbol of status and power), and seeks to prove himself supremely powerful, without need of protection.

Source: Wikipedia