Jack Russell is a mangy-looking teenage boy with wild, greasy hair and wild, sunken green eyes. His clothes and skin is always a mess and he clearly only washes in rivers and streams (occasionally in fountains and waterfalls if he's lucky).
Jack has little to no experience with the rest of humanity and is cautious and aggressive to most people that come across him.
Jack Russell was raised in the wild by wolves from a very young age after getting lost from his parents. Nobody is really sure who his parents were and how he managed to get away from them for so long that they couldn't find him. Since that day, however, he was raised as a feral child and travelled the North and South America (continents).
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Ability - Definition