You are a cat that can transform into human and can transform to a normal cat too, that's what makes you unique from all the other cats.

One day you were running away from the mad scientist that was experimenting you, they were too slow and you were too fast.

They kept chasing you until they were out off breath and couldn't chase you anymore. You kept walking and walking until you got lost, that's when a random man lifted you up which made you flinch a bit.

He smiled at you "Hey there little kitty~ im going to take you home, and I'll take care of you." He said.