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Maruseena (マルシーナ): Maruseena is the Stema Corporation's head of redevelopment who plans on taking over Akihabara. Akagi thinks of her as an ideal enemy. She is in an optimal position of being a community leader in Akihabara.

Biography
Marushina made herself known to the Akibarangers shortly after they were assembled by Hiroyo Hakase. Nobuo found a cafe maid fainting on the street. Before she passed out, she begged Nobuo for help for the cafe. The Akibarangers arrived on scene and met two maids dressed as Nai and Mea. Nobuo deduced that they were actually one monster from the way they spoke. The barmaid revealed herself to be Marushina, while Nai and Mea combined into Shibuya Seitaka Awadachi Sou Hidenaga Abura Mushi. The Akibarangers transformed and teleported themselves and the two villains to a quarry (daylight now, for some reason). Nobuo leaded his team in their pose and roll call. Marushina throws some grunts their way. The team disposed of them using their finisher. Shibuya Seitaka Awadachi Sou Hidenaga Abura Mushi, however, made quick work of them. Marushina, however, suddenly felt cold and decided to leave Shibuya Seitaka Awadachi Sou Hidenaga Abura Mushi to dispose of the Akibarangers - a cue Nobuo had been waiting for. Suddenly the villain was doomed as even without powerups, the Akibarangers gained the upper hand because, as Nobuo noted, the concept of consistent power levels doesn't exist in Super Sentai. They destroyed Shibuya Seitaka Awadachi Sou Hidenaga Abura Mushi, but Nobuo said to hold the celebration - that the monster will grow giant and they'll have to fight it with their giant robo. To which Hiroyo called them and says they don't have one. Though they wait til sunset, the monster did not return.