Kamen Rider Black Sun

Sacred stones are implanted in the bodies of two boys. Decades later, the world is divided. There are those who want to eliminate the "kaijin" and those who want to coexist with them. In the midst of this, there is a man, Kotaro Minami who’s somewhat a recluse. A young activist, Aoi Izumi wants to change the divided world. When Aoi and Kotaro meet, the time which had stopped begins to move again…

Nobuhiko, together with the kaijins he gathered, tries to recover the former Gorgom. An old friend visits him and informs him that the Kingstone is under Aois care, so he goes to Kotaro... Meanwhile, Aoi is happy to see her father, Hideo Kawamoto again. However, Aoi is suddenly pursued relentlessly by her father who has turned into a kaijin. But she is saved by an unexpected person.

Kotaro confronts the "Creation King" once again. That meant facing the abominable past and everything was supposed to be settled. In front of the kings corpse, Nobuhiko is informed of the truth about Yukari. Meanwhile, Aoi and Shunsuke succeed in escaping despite losing various things. But on their way home, after parting ways with Aoi, Shunsuke is surrounded by an anti-kaijin group...

Black Sun transcends time and soars in the sky. Believing in his own justice, he heads to overthrow Shadow Moon for the sake of the planet. The two throw themselves into the final battle for their destiny. After a fierce battle, Nobuhiko entrusts the Kingstone to Kotaro and returns to Yukari. But behind the scenes, a shadow that had been watching the whole thing is lurking suspiciously...