In Slayers Next, we are introduced to Milgasia, a leader among the remaining golden dragons who once served under the Water Dragon King. When Lina Inverse and her companions enter the Valley of Dragons, they encounter Milgasia, who assists them in finding the real Claire Bible so that Lina can learn about the Giga Slave's truth. Later on, Milgasia joins Lina on her travels with his elven companion Mephis for a brief period. It is believed that Milgasia has lived for over a thousand years and possesses firsthand knowledge of Xellos and the War of the Monsters Fall. Initially, he is concerned about Lina's association with Xellos until Gourry confirms that they are not intimidated by his influence. Milgasia makes his debut in episode 20 of Slayers Next, which corresponds to the seventh novel and manga issue.