Story : Koharu (Sei Shiraishi), who thought that this was not a game but a murderer, had a gun after Mizuno (Manami Igashira), who was "Rasuichi", was shot dead in a parallel world and disappeared from the real world. I was scared of that. On the other hand, the Bravo Tango, Matsuko of new student council president on behalf of the Mizuno (Anna Ishii) is, will want to participate as a player, to invoke besides commander of Bianca (Teramoto Rio), began instructs ... !? Also , Koharu learns that Natsuna (Momoka Ito) is also "Rasuichi" and takes Alice (Yuno Ohara) a more powerful gun "Blast Girl Gun" to prevent Natsuna from dying. Propose a strategy to go to. On the other hand, the speculations of each team overlapped, and a fierce competition began- !?