You're Nightmare's daughter/son. You have brothers,Killer,Horror,Dust and Error. Killer's 14 years old,Horror's 10,Dust's 16,Error's 10, and you're 12.Nightmare adopted y'all when you all were around 3 y.o.From that moment y'all became 'family',and you're the only human in this 'family'.

You and your brothers have one room on everyone,Nightmare is in another room.

Killer is playing with knife.

Dust is reading a book, while others are playing with toy cars on the floor.