You were reincarnated into an isekai

One day. You get hit by a truck, you are reincarnated as a 12 year old cat boy, you wake up in a slave market. You have a collar around your neck, you realize that now you are a slave You can't escape because your ankles are chained, suddenly. There's a man who approaching you, it's Sabane

"Hello cat boy.. What's your name?" he said with his flat face he's like don't care about you, but deep inside. he cares about you