Akimu Papladon

An artificial demon (Dubbed "Artificial Demon Number 9") delivered to Franken Stein, who battles Staz. He was originally a demon named Pantomime, who was performing a top-secret mission for Father Wolf before he suddenly became out of contact. He has something to do with Fuyumi's appearance in the Demon World. It is revealed that that Braz captured him and delivered him to Stein as a test subject to perform his experiments on.