Dragonewt

...Dragonewt in deadly mortal combat. At stake: the life of Biryu, the handsome son of Ryu-O, the Dragon King. Aiding Yohko are the mysterious sorceress Yanagi and Biryu's servant, Obaba; but unbeknownst to our intrepid heroine...

Dragonewts are reptilian humanoids who progress through a series of forms as they hone their state of mystical attunement with their draconic natures. This transformation occurs via reincarnation. When a dragonewt dies, its soul migrates into a new egg.

For lizardmen, the average was fifty to seventy years—for dragonewts, two hundred or so. And even that figure was just from the reference books; nobody was sure exactly how long he may live.

In a fantastical future ruled by dragonewts, human dominance is a thing of the past. Despite humanity's extinction, Nid, a young dragonewt with a passion for ancient history, makes a startling discovery: a young human girl who calls herself Juana. Together, the unlikely pair sets out to explore the strange world of the Seven Kingdoms.

In How a Realist Hero Rebuilt the Kingdom, voice actor Aimi plays the role of Carla Vargas (pictured below), a dragonewt who is the daughter of General Castor Vargas of Elfrieden.