Empress Maki is a villain of Engine Sentai Go-Onger: Boom Boom! Bang Bang! GekijōBang!!. She is the ruler of the Samurai World from Maken Castle with a heartless outlook on life as she commands the Yōma, demonic beasts that terrorize Samurai World with Raiken and Gokumaru as her strongest servants. She tricked the Wandering Engines out of their Engine Casts, using them to erect her empire by purging Samurai World's denizens of all feelings but rage and violence, the same technique she used on herself. After being defeated by Go-On Red and the Honōshū, Maki uses Retsu-Taka's Engine Cast to assume a giant centipede-headed hydra form named Maki until Go-On Red takes the Engine Cast, forcing the Yōma into her true form Maki (魔鬼 Maki?). In the end, she was destroyed by Engine Dai-Shogun with her castle burned to the ground.