Uppers digest gameplay: Nicole and Tenmei Sanada
http://gematsu.com/2016/02/uppers-digest-gameplay-nicole-tenmei-sanada
edit : sorry beaten by Kresnik...
So 12 playable characters so far. Basically a male Senran Kagura. I'm really not a fan of playing multple character campaign like this. I would have much rather had the 2 main characters (and the female cat :p) as the only playable characters. Still I hope the story is more enjoyable than Senran.