The life of William Harvey could be condensed into a single uppercase word: TRAGEDY.
Since birth, Harvey had been an orphan, and although he was picked up and raised, it wasn't out of kindness, but to use him as livestock. There were a dozen or so orphans who grew up alongside Harvey, but in the end, he was the only one who survived.
Harvey didn't survive by his own ability to fight back, but because that old beast drank himself to death.
Locked in a cage, Harvey stripped off all his clothes to make a rope, pulled the key off the corpse of that old beast, and thus he survived. Unfortunately, his speed was still too slow, and so no other children survived.
It seemed that from this point on, Harvey embarked on a rocky path, and the main reason he survived was luck rather than being smarter than others.
After escaping the human trafficker's cage, what followed was a long period of wandering.