Granutes are intelligent lifeforms that operate secretly in the human world. They kidnap people for the sake of "Black Market Sweets." As people are attacked one after another by the Granutes, Shoma, a young man from another world, rises up to save the people. Together with the Gochizo, small monsters born from eating sweets, he transforms into Kamen Rider Gavv with a mouth-like belt!
Episode 1
Shoma, who comes from a different world, is saved by a boy named Hajime when he collapses from hunger. Shoma excitedly eats the snacks that Hajime gave him, but as soon as he does, Gochizo are born one after another. Meanwhile, freelance writer Hanto is gathering information on the appearance of "monsters" while doing research.
Episode 2
Shoma, who has collapsed from hunger again, is helped by Sachika, who runs an anything-and-everything general store, and treats him to lunch and snacks. Meanwhile, Hanto discovers information about Gavv on social media and starts interviewing witnesses...
Episode 3
After leaving Sachika's house, Shoma encounters Sujimoto. Upon seeing Shoma's strength he offers him a job. Meanwhile, Hanto asks Sachika to look into sightings of Gavv and the Granutes.
Episode 4
After accidentally trying to eat a vegetable in their garden out of hunger, Shoma is invited into Ryoji and Mutsuko's house. Hanto goes to Suga's laboratory in order to learn more about the Granutes.
Episode 5
Shoma collapsed from hunger and was saved by a mysterious monster. Is it a new Granute? Shoma wakes up and transforms into Gavv, but his movement was halted by an unexpected reaction: "The surgery was a success!" Who is this monster?
Episode 6
Shoma starts a new life at Sachika's "Happipare". Meanwhile, Suga has succeeded in developing an item that can transform a person into a Kamen Rider, and asks Hanto to try it out.
Episode 7
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Episode 8
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Episode 9
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Episode 10
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Episode 11
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Episode 12
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Episode 13
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Episode 14
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Episode 15
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Episode 16
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Episode 17
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Episode 18
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Episode 19
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Episode 20
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Episode 21
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Episode 22
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Episode 23
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Episode 24
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Episode 25
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Episode 26
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Episode 27
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Episode 28
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Episode 29
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Episode 30
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Episode 31
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Episode 32
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Episode 33
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Episode 34
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Episode 35
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Episode 36
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Episode 37
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Episode 38
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Episode 39
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Episode 40
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Episode 41
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Episode 42
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Episode 43
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Episode 44
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