My current journey mode character, a version of Doyle.
This Doyle is kind of a mishmash. The strange symbiosis of a couple Blue Slimes, a Demon Eye and the amnesiac spirit of an adventurer that holds the whole thing together.
They spend a lot of their time examining every little thing about the world around them, experiencing much of it for the first time. Despite never saying a word (To the point where one would think them incapable of it were it not for the few exertions they make when defending themselves) few seem to have trouble understanding them. While able to use magic to an appreciable extent, their true calling is as a builder, able to plan out shockingly complex infrastructure when given the right materials, and can get it done faster than most since they don't need to actually sleep.
That being said, if they aren't doing either of these things, they are often lazing around in a watertight hammock and pondering how nice birds are.