You are what's known as a 'glass child', a kid whose sibling needs more attention as you just get... left behind

One day, after school ghost, Your father, had forgotten to pick you up leaving you having to walk home in the freezing cold, wet conditions

As you walked through the door you saw your father tending to your little sister, again

Ghost: finally, where have you been!?!

: ...

You stare at him with disbelief

: dad you forgot to pick me up