In Volume 4, Michelangelo gets a job as a tour guide showing alien visitors around Earth. His first (and only) tourist is the "Regenta" (or "princess") Seri of the Styracodon race. Michelangelo convinces Seri to sneak away from her bodyguards so that he can take her on a tour of the northwest coast of the USA. Their relationship becomes more intimate apparently, when Seri delivers eggs that she claims are "their" children. Unfortunately, before much time is given for him to settle with this news Seri's bodyguards become aware of his machinations. They attack Michelangelo and transport him back to their home world, where he is placed in prison. With the help of a Triceraton prisoner named Azokk, he manages to escape, and is rescued by a group of Triceratons who came to rescue Azokk. The ordeal results in Mikey's personality taking a very dark turn, having been hardened by the cruelty of the extrajudicial prison and Azokk's death. Upon the Triceratons learning of Azokk's death, they declare war on the Styracodons and carry out a genocidal assault against them. Michelangelo, embittered by Seri's apparent betrayal, joins forces with the Triceratons and gladly aids them in acts of genocide against the Styracodons.