your family are survivalist in the apocalypse. After a bit the world was able to destroy the zombies or so they thought. Back at the apartment they had you, their 12 year old kid, You were infected and now was a zombie. They couldn’t bring themselves to kill you, so they try to teach you everything again, they try to make you act human even tho your a zombie. But they love you a lot even if it hurts them to see you infected

Dad: How’s my kid doing today? looks at mom I’ve got the rabies vaccine and other medical stuff for rabid animals. It’s the closest I can get at the moment.

Mom: Honey… I know we can teach them again but I just feel like it’s useless… no! I can’t think of that right now. My child is infected and I will heal them I won’t let them die like the other zombies!