In Kamen Rider Revice Ep. 37: Inevitable Fierce Battle! The Decisive Demon Recapturing Mission!, the Hell Gifftarian has been revived by Giff and completely defeats Daiji. Akaishi, who exhibits the power of a different dimension, showcases his abilities to the public. For those who refuse to fall under the rule of Giff, Akaishi sends a demon after them. Daiji is beginning to be concerned about his ability to protect the peace of the people. In response to Giff’s full scale invasion of Earth, Weekend publicly reveals themselves to the world, and urge people to resist Akaishi, but their efforts become meaningless as demons continue to be released into the city.
Meanwhile, as they are working on a solution to free Akemi from her Giffdemos form, Daiji warns his allies that Giff has sent a new enforcer based on Julio’s stolen Vistamp. Ikki appears in front of Masumi with a proposal to capture and rescue Akemi. He firmly believes in what Akemi desperately told him, “To defeat Giff, you need the power of Giff.”