Saya and the others check in at a hotel where they are supposed to meet up with others. While David is out doing some research, Riku comes down with a fever. Saya stays with her brother and takes care of him, but in this situation, Liza questions Saya about her true intention to fight the Chiroptera. Why does she kill them? Is she not getting others involved in the battles by killing Chiroptera? Saya, who is still confused about the real meaning of the dreams she had in Vietnam and in the Russian tundra, appears unable to find an answer. And then, Liza says something even more shocking...

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 finds out that Riku has turned into a chevalier. "What can I do?" Kai keeps asking himself, wandering around in the city of Paris. He comes across Irene in the observation deck of the Eiffel Tower. She's terribly weakened, but she's ready to disclose what she knows about Schiff's past...

As Irene starts showing signs of dying, Kai refers to Saya what he was told about Schiff. But for the girl, who firmly believes that her task is to exterminate the Chiroptera, this is the first time she feels desperately far away from her stepbrother. In the meanwhile, Julia isolates a DNA component that apparently does not belong to any known living creature on this planet...

Kai begs Saya to give her blood to Irene and save her from the advancing crystallization process. But Saya hesitates: what will she decide in the end?

In the meanwhile, in the Red Shield HQ, Julia continues her researches, but she notices that her mentor Collins has got in touch with an unexpected person...

A year had passed and that period of time had clearly brought changes to the Schiff. Thorns emerge in Goodliff and Dirth. The few remaining comrades draw together quietly in an abandoned church avoiding the sun.

But they are about to be battered by another desperation, as the Corpse Corps abruptly attacks them...

Saya is invited to a birthday party for Javier, one of Glay's children. But once at the party, Saya feels that she does not belong there after all. As Kai and all others care for Saya, who has shut her mind from them, Carl closes in on Glay's residence with Corpse Corps. And his distorted love for Saya forces him to yet further insanity...

Okamura and Mao inform that Diva's promotional video was planned to be filmed on a deserted island with ruins of a small village on the seaside. David and others head for Christina Island. There awaited James and Corpse Corps, the mass-produced version of the Schiff!

Saya learns that Diva is pregnant with twins. She decides to kill Diva before the twins who would only strengthen the enemy are born. Meanwhile, there remained three surviving Schiff. Moses and Lulu are staggered when they catch a sign of death, "Thorn," on Karman's neck.

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.