Satomi Oka is worried about his final choir competition but is accosted by a shadowy gangster, Kyouji Narita, who demands karaoke sessions with him.
It focuses on the prequel of Jujutsu Kaisen.
In a world shaped by the dreams we see in our sleep, Zeztz enters people's dreams as an agent on a mission. Equipped with a cutting-edge Rider belt worn across the chest, Zeztz brings a bold new form to the battle.
A Kamen Rider ZEZTZ spin-off series focusing on Minami Yorozu, Baku Yorozu/Kamen Rider ZEZTZ's younger sister, and will depict "certain missions" that take place behind the scenes of the main story.