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?

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.

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.