On Begrie, a distant planet, Aivels, humanoids with animal blood within them, and humans are at a makeshift peace. The humans have enslaved the Aivels, and they can only be freed by killing a Sientifiko. White Mowz is a typical Aivel teenager until she gets kidnapped by another Aivel. Black Kat is your typical Aivel cat burglar, pun intended, who was ordered to kidnap White Mowz and to use her to free them both by killing a Sientifiko