The sixth ranger is usually some edgy redeemed evil person who still has like half a character arc to go through before they really find peace. But for this team, the sixth member is totally just going to be the one token normal magical girl or Kamen Rider on a team full of void-tainted ex-assassins, aren't they? All sparkling and cheery and talking about solving your ills with the power of friendship, and then Boss Roze casually mentions that when she was going through shit as a kid, her trainers would just throw her into a pool of sharks and tell her to swim or die.