My trauma loving ass thought of an idea. Knack but he is a walking soul container. His spirit and another(s) in the same body unaware of each other at first. Knack often having strange dreams about being in someone's shoes thrown into various situations that range from insane to terrifying.
The golem fully unaware that these are someone else's memories who slowly becomes more conscious the deeper he goes. A change which gradually gets noticed by his companions as Knack and this other spirit begin to sporadically switch control. One second he's normal self but then the next acts like a completely different person.
To Knack, the swap is equivalent to a blink. One second he is chatting and the next atop a skyscraper like a gargoyle. He absolutely grows nervous about these blackouts as no one knows what's going on. Then Knack looks into a mirror.
He isn't alone in the reflection. Someone is standing there next to him. An impossibility since he's by himself. Knack moves his hand and this second person copies him at first before acting of their own accord.
There will soon come a time where both souls can move together as one. Able to interact without any mental barrier keeping them separated. Sadly not now and won't be for quite awhile.
Knack is stuck having to understand this phantom that follows beside him. The same goes for his companion. Both face the unknown alone and are scared of what it all means...
When you don't know who or what you are.
