Kamen Rider Series S33E44 - Creation VI: Neon, Shining

Michinaga and Ace attempt to save Keiwa from himself, but he refuses to listen while consumed in darkness over him indirectly killing his family with a wish that was meant to bring them back. This forces Ace to confront Keiwa's inner demon, whose existence was alluded in the first Desire Royale, and fights him to save Keiwa. Meanwhile, with Kōsei hospitalized, Neon learns that the events that caused Akari's death were caused by Beroba for her own amusement. Regaining her ability to become Na-Go while entrusted with the Fantasy Raise Buckle, Neon decides to put an end to Beroba for the suffering she brought to her family.