[Suzerain of Sheol]

That's not quite right. Her two kids are in the game, but they're both in the corners of the top row (that's Pyrrah selected, not Sophitia or Cassandra, who are both gone). Viola is someone different, she's a companion of Zwei (the guy second from the left in the top row) who's some kind of werewolf and fights with a reverse-grip sword. Then the blonde girl in the middle is Natsu, Taki's apprentice (who apparently is different enough from Taki to not make people annoyed.)

Kind of confusing, I know. :p