Takemi reminds me of a punk version of Irina. She even looks like her! Her link is stalled out for some dumb reason though so I can't comment more than that on her. Sojiro is a hardass but he's a good guy at heart. Shogi player is ok, haven't really gotten far enough in that one to be interested yet.
I really like the concept of the Sun politician. Mishima is a huge goof, but I can't begrudge him since I get where he's coming from. Sae is a fucking bitch fuck her, I'm at the middle of the Pyramid and so far she's given me no damn reason to like her.