Nana 7 Of 7 OVA Ep - Female AP

OVA Ep It's New Year's! 7x7=49 Nanas?
Mad-scientist-grandfather's microwave/energy prism creates 6 clones of Nana that she must keep hidden, representing different parts of her personality. Nana dreams she multiplies her clones by 7 into the hundreds of thousands to wage feudal war on a bunch of bullies. The infant daughter of the offending family touches the microwave and is promptly aged from about 1 to 24 in seconds. "Oooooh, I'm just growing up sooooo fast!