Chiropterans run wild - and Saya comes into her own as a single-minded killing machine! Three months after the demolition of Red Shield headquarters, Saya is more intent than ever to rid the globe of all Chiropterans, and she travels to New York City for a bloody showdown with Diva. When Diva sings, her supernatural sounds turn some humans into hellish, bloodthirsty beasts ...and what better place to start a Chiropteran apocalypse than Carnegie Hall? Desperate to kill these monsters and put a stop to Diva's threat once and for all, Saya's willing to kill her loved ones and herself to achieve this goal, and her rage will not be quenched by Hagi's presence or Kai's pleas - or by a strange declaration of love.