Anyone wanna colab on this with me?
So we can work out information and other stuff on them?
Hope so :p

So far the only stuff I've figured out is:
They live in citys and help poor/homeless people/domestic animals
They sometimes don't have arms(but it's rare)
There arms are transparent and they can summon/make them appear at will
They can go through objects/other things,and they can be invisible
They stay with the person/animal they help till they die(till the person/animal dies,not them,because they are immortal and live forever.)
They cannot die(because Reasons)
There tails are like bags(that's what the 'lump' in it is)
The two(there can be more than one,but you'd have to be tagged to be able to have it((it's not free))) 'grabbers' at the end of the tail is like a second hand
They're nicknamed 'the ghosts of the city(s)'

And that's about it
Byee