Muriel

So Muriel here has a cool magical effect where, once he has left someone's sight, they forget he ever existed. Every time meeting him is like you've never seen him before in your life (he still remembers though).

This post is for clarifying how/if you want this magical effect to work on your character! You are not at all required to play with this aspect even if your character has no IC means of getting around it; chalk it up to being from different worlds.

I am also open to a variation where they forget him when not around him but do remember prior interactions when he is in sight, or it's difficult but not impossible to remember him when not around him. Feel free to play in the space a bit!

Note: If it DOES work on your character, this can eventually be circumvented by Muriel himself giving them a special poultice that will allow them to remember him. This will take CR building, as he is a grumpy hermit that willingly CHOSE this magical effect.

If you want to handwave repeated first-meetings whenever they run into each other, this is also the place to hash that out.