A kid and his attack dog? Body guard? His Killer.

Sorry to chop off all kilkils hair - but i hc it doesn't start growing long until their both just a little older. A little stonger. Growing up it's constantly getting pulled or ripped out in a fight. Sometimes they have to cut whole chunks out if he gets it knotted or something gets stuck in it.

Eventually though they'll be both strong enough to be untouchable. They dont notice at first.. not until they realise just how long Killer's hair has grown out lately.