While Mari and Yuki Kozuki were working part-time at a maid cafe in Akihabara in order to buy a speed-pushing machine, Shiki and Inoue were also in Akihabara. They came to the game center for secret training on the quiz game machine. As soon as they were playing against a player named Commander Chisato, Ashiya appeared. To their surprise, their opponent was Goraiya. Then, a suspicious figure approached and .......