Master manipulator Megumi Hino-Hano-chan is enraged by her failure to bring down timid Yaya Higuchi - and her alter ego, the confident and boisterous Nana. So Hano-chan decides to take the ultimate revenge. Using the singing contract that Yaya desperately wishes to null and void as a means to her mean-spirited ends, Hano-chan makes Yaya an offer.
