Me and the Alien MuMu

MuMu, Sakurako and the Risk of Apocalypse (1x23)

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Appearing before the Moomoos are the remains of the Brain, who once controlled the war - a clone of Doctor Octal, created as a way to spite the Moomoos. Meanwhile, Sakurako and Anamori are being held captive along with Samezu. How will they overcome this crisis?