A young Porpros-kin, Numnu claims to love humans very much and greatly enjoys spending time with them. In truth, however, he is very fond of playing pranks on them.

Numnu enjoys spending time with the Dromon Pirates, claiming that bad men were trying to capture and sell him. He disappeared so long that a human passing by became worried for his safety and sent out a company request. The Hero took the job, and when he encountered the pirates, Numnu claimed the Hero was the bad guy, getting the pirates to get into a battle with the Hero. The Hero wins, and Nimni and Nemne soon show up to set the record straight.

Numnu is brought back to Priestess Neira despite his protests, and Ninulneda is invoked to scold the reckless Numnu. The Goddess makes Numnu work for the company as punishment.

Numnu is extremely jealous of Autar because everyone thinks he is the cutest. As such, he played a prank on Yovel, gluing his mask to his face, and framed Autar by disposing of the container for the glue near his field. But Yovel sees through this prank, as there would have been fur stuck to the adhesive if the Furious Roar were the culprits, and Numnu is discovered. Despite the seriousness of the prank, Numnu did not intend to hurt Yovel and was genuinely regretful when he learned that it caused serious problems for him. But that didn’t stop Ninulneda from lecturing the errant trouble-maker.

Numnu joins with the Dromon Pirates after the war, much to the delight of Felecca. - Matt620