A Umichan Animated Series takes place right after Umichan: Maiko Snowball Holiday. After the Snowball fight with Luma, she sends in the sentinels to attack Maiko. Maiko fights the sentinels one after the other. Her hair pin glows as it is observing the energy around it. It explodes knocking down Maiko out cold. A voice can be heard, who is the mysteries voice? What will happened to Maiko?