Which character's description did you put the most thought into?

The title says it all. Which character and what made you say that.
Mine is My story avi. This is because she has a ton of outfits, a storyline, and is a hybrid of 5 species. See:

Yes, she has a queen title and kingdom, which I only made while coming up with her, it wasn’t even a planned kingdom.

I put the most plot into the MC but the most description of characteristics into my story avi.

But yeah, share which character and what about them makes you say that. it can be a character in your story or one you made for fun, or one you made for someone.