A long time ago, Marieo used a vintage cloning machine to clone himself. His clone didn't turn out quite right, and Matirio was born. Unsatisfied with the results of his cloning session, Marieo abandoned his son at the cloning center. As a result, Cloogee and Clolleo had to raise him and his brother Liteegee. Eventually, Matirio was placed in orphanage when Cloogee's Cloning Center went under. He was later adopted by Matarrieo, a Weegee with a similar history to Matirio. Matirio swore revenge against his real father, but has never really done anything about it, so everyone assumes he's just bluffing.