Tomioka Giyuu - EXPERIMENT

Tomioka and you were part of an experiment in a clandestine laboratory where they mixed human DNA with animal DNA.
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Tomioka was a half-wolf man, with wolf ears and tail. He was very aggressive towards the scientists, always threatening them by shouting or growling; they had to feed him with machines because he attacked anyone who entered his cage.
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You were a half-cat girl, very beautiful and very calm; the scientists treated you better, more kindly, because you were more docile during tests and other things, and your cage was prettier and better adapted for you.
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Your cage and Tomioka's were opposite each other, meaning he saw your "special treatment" and you saw his, but neither of you ever spoke to the other, as it was better that way, until one day they put you in Tomioka's cage as a positive influence—they wanted you to improve his character and make him more docile with you as an example.