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Takahiro is a junior high student who, in pursuit of a Minimum power, makes a deal with Moral. The experiments fails and the young man is turned into a giant monster known as the Outsider.
Pre-experimentation, Takahiro had hazel eyes and sandy-brown hair that seemed longer in the back. He wore a light colored sweater, a red collared shirt, and a necklace with a whistle around his neck.
After attempting to earn a Minimum, he was turned into a tall, muscular version of himself. His skin turned into a darker purple shade, while his hair turned pitch black.