Li Shanshun is a Chinese student just moving to Japan. Upon moving in his new apartment he meets a woman named Haraguchi. He sees here again that night, after observing the stars, and even saves her from getting caught by the cops. It seems Haraguchi is in something she shouldn't be as Li saves her from being kidnapped after running into her again. But a second rescue is out of the question since the kidnapper is a Contractor. Li is knocked off a bridge and left for dead and Haraguchi is taken away. Is Li really dead? Or is there more than meets the eye when it comes to him?

As Li and Haraguchi continue to avoid Alan and the other Contractors, Haraguchi reveals that her actual name is Chiaki Shinoda. She also says she will give him the information she received from Rui. Upon retrieving the information Lee leaves Chiaki behind and takes of with the information. But everything is not as it seems. After getting a little ways away Li is attacked by Alan and the other Contractors. Can he survive?

After meeting with Amber, Hei learns that against common knowledge Contractors can become more humane than was thought to be possible. Realising his own position between the world of contractors and humans, Hei has to make the decisive choice for both. With final farewells to his past comrades inside the Gate, and their support behind his back, Hei's decision brings new future for the world.

An Eurasian girl named Suou watches a meteor shower along with her twin brother Shion and their father, but things go awry when a meteor crashes into their location. Two years later, Shion has turned into a contractor from the incident, confined to a wheelchair due to his renumeration. He is locked away into the family home for safekeeping, while Dr. Pavlichenko spends his time researching into his son's condition and the contractors, forbidding Suou to talk or see her brother. Things go normally in their lives until Suou's best friend Tania becomes a contractor and attacks her boyfriend Nika when he stops her from leaving. Hei aka BK-201 reappears in Russia after a FSB squad tries to capture Shion alive; April also reappears in Russia on a mission to secure Shion.

Kirihara has searched long and hard for BK201?s true identity, and what she discovers of his past is shocking, but the impending destruction of Tokyo is foremost on the minds facing off in this final battle.

Kiko and Kurasawa help Suo search for her mother. After a mysterious stranger points the young Contractor in the right direction, a long-awaited reunion leads to an unbelievable revelation.

Tokyo is locked down as chaos follows Amber and the members of Evening Primrose. The Black Reaper knows the destruction that can be unleashed if Amber isn't stopped - and he's willing to risk the wrath of his own team to thwart her.

Prophesies are fulfilled, and Suo faces her destiny. Even as her memories fade away beneath the shining moon, hope remains - and a new era begins.