Blue doors? I don’t remember that, though it has been awhile since I last played.
Off the top of my head I’ve done a pure good run, a pure corrupt run, and a run where I’ve done good options while consuming souls.
BTW as fellow overachiever of this game, do you know if there is an alternate ending with Rilliane where she remember her dark past ? In the good ending + romance with her, it finishes with a "your past doesn't matter". But I just saw the staff could enable a special "dark rilliane skin", so maybe it triggers another end ?