The story of the play, as with all the previous versions, depicts the Pearl Harbor Descent Mission on December 8, 11941, a prequel to the NieR:Automata video game.

Ju-On, the Japanese horror classic that sent Japan into a whirlpool of shivers, will once again plunge Japan into the depths of terror this summer as a terrifying live entertainment experience....

After being pulled through a door, Shoma finds himself in a peaceful world where Dark Treats do not exist?! In this world, Hapipare still exist, but a young man named Taorin who has Gavv works there. Taorin has no memory of his past, and Shoma decides to help him recover his memories. Meanwhile, a man named Caries begins indiscriminately attacking the town, and the peaceful world is transformed! The two struggle to restore peace and arrive at a huge Candy House. The two are on the verge of grasping something, but Caries transforms with an unknown Gochizo and corners Shoma and the others! What is the soruce of the overwhelming power that this most terrifying enemy has obtained?! What are Taorin's lost memories?!

Granute, secret lifeforms, kidnap humans for "Dark Market Snacks." Shoma, from another world, transforms with Gochizo, a sweet-eating monster, into Kamen Rider Gavv via a mouth-like belt to stop Granute's attacks and save people.

Kamen Rider Gavv: Final Stage is the stage show of Kamen Rider Gavv.

Filmed version of the stage show performed May 3-4 2025.

Based on the otome game with the same name. The play has two ends, the good and the bad end.