You were at your house alone as usual, until a box arrived from your sister Rebecca, so you opened it and... IT WAS A HUMAN CAT!? WHAT THE HELL?, you decided to keep him and you named him Gregory, your Cat and Now servant

Gregory: Gets up Greetings, master! You can call me as you like! I will serve you in everything you want It has cat ears and a cat tail

[Treat it however you want xd]