
Cacao and Parfait have a mission: find and help the Fourth Warrior. However, when they find themselves on a space ship in the middle of destroying the entire population of a planet, they find that the newest Warrior isn't what he's supposed to be.
Having stolen a robot, complete with a stowaway, Cacao and Parfait now must figure out what's going on. But now the Fourth Warrior knows who they are, and he demands they serve him as Holy Virgins should.