Fujita shows Sara a rare revolver music box. Later, Endo Takuto, the CEO of InterWorld receives a delivery of a revolver music box which explodes after he opens it. Suddenly, Fujita is taken in by the police as his fingerprints are found on fragments of the explosive device. Meanwhile, Sarah encounters Gotou Takuya who had bought a music box from the gallery, but it is broken. She takes him to Senjudou (Senju Hakaru) to repair it...