Saya and the others arrive in Vladivostok, and take the Trans-Siberian Railroad with Elizaveta, a Russian Red Shield agent. But the Chiroptera are lurking in the most unexpected places...

Okamura and Mao arrive in France. They are looking for clues about the mystery behind the wine bottle of 1967 Chateau Duel that was transported out of the lycee in Vietnam. And their investigations lead them to an unexpected encounter. In the meantime, another party has reached French soil. They are known as the Schiff, and are determined to hunt Saya and Hagi.

Near the new port of Marseilles, France. Riku finally awakens from a coma and everyone is overjoyed. But Riku is anxious about the way his body feels. Something is different. Worried about his little brother, Kai is frustrated about not being able to help him in any way. In the mean time the Schiff is about to reach the Red Shield HQ after Saya.

Kai tells Saya that he knows what she is. He suggests that Saya read Joels Diary. As she meets Joel at Red Shield HQ and starts reading the Diary, the shocking truth about Diva and the events in Vietnam back in 1972 slowly unveils...

Assisted by Okamura and Mao, David locates the Goldsmith and Cinq Fleches joint-venture lab in the outskirts of London. Meanwhile, Saya and Hagi discover that Diva is going to perform at the Royal Opera House in London. They sneak into the opera house, but...

Okamura and Mao's apartment in New York is blown up and they have to move to David's place. In the meantime, Joel is investigating the US military and Chevalier's scheme, and he obtains information relating to Diva...

As Karman notices the Thorn, he acknowledges that his death is near. Moses hugs him and vows, "I will not let you die." James tells Moses that Karman needs Diva's blood to survive. Moses leaves to get what was demanded in return for Diva's blood: Kai's life. Moses does not realize James' real intention and takes a sword alone.

The opera house has become a battleground. On the stage, the two Queens, Saya and Diva, clash with their swords. Meanwhile, at the wing of the stage, Hagi and Amshel, the two Chevaliers are facing each other. All this time outside the opera house, David and Kai are restrained in the TV broadcast van surrounded by the Chiroptera. To end the face off, David offers to play decoy.