Momoka's class gets a student teacher, Naoto Sato (Yuki Morinaga), who makes terrible jokes to compensate for his shyness. Mudako turns him into the Akiramest, Kudaranessu. Momoka uses the Change Tanzanite and the Laughing Tourmaline to distract the teachers under Kudaranessu's control and purelizes him, recovering the Bubble Quartz. Shiori, who had been observing from afar, decides to approach Momoka.

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