Shizuka Nomura receives an invitation to a Halloween party, but no matter how many times she throws it away, it keeps coming back to her. Suspicious, Shizuka consults Akiko Narumi. Akiko infiltrates the Halloween party with the new members of the Girl Remix, Rinne Kudo and Nayuta Mikazuki! The host of the party is a surprise?! What kind of party will the Girls Remix experience?!