Yeah OniSister already doesn't fit but seeing her so well implemented makes me feel at ease that a 6th member will work just as well.

Or - it's a character from a different folklore altogether. A European one even, maybe. At this point I'm on board with whatever they try because I feel like they can make it work.

I was very much not into what I saw for Donbrothers in its pre-premiere phase, but now I do enjoy watching it. A lot.