Reasoning: Girlie was one of the first animals to be evolved into such anthropomorphical form, then was kidnapped and experimented on, then had to see her mentor, the only person that made her feel safe, turn into a baby and basically raised him, she doesn't know how to socialize, she only knows how to fight and survive

Reasoning: His species was wiped off the world, hes the last one, his father the person that raised him was part of the people that killed his species and was raised as a child soldier

Reasoning:

Kid was raised by a human obsessed cult, his mom worshipped him like a god and not a son, he has 2 stalkers (which one of them turns into his dad byt the other is now so???)

He was the only human in an anthropomorphical animal world

And he spent his whole life believing he was the only one of his species