Nana Suzuki was just a normal girl with a not-so-normal inventor for a grandfather, until one day she tinkered with the wrong invention and found herself... surrounded by six other Nanas?! Each copy reflects one aspect of Nana's personality, can wield superpowers, and feels she has every right to keep her memories and her life. Now, with seven girls all vying for the same desk at school, the same clothes to wear and the same crush to fall in love with, only one question remains: who will become the real Nana?