Suzune Miura

After the events of the series, Shoma continues his research for "Light Treats" to replace Dark Treats, Hanto continues his research as a freelance writer as keep daily records of the battle of the Kamen Riders, and Rakia remains alone in the Granute World. However, a new incident occurs in the once peaceful human world, forcing Shoma to rush back to the battlefield. What serious abnormality has occured to Hanto's body? What is the current state of the president's daughter, Lizel Jaldak, who is stuck in the human world? The final battle of the candy Kamen Riders begin!

The cynical butler, Sora Otosumi lives alone in a mansion with the innocent and carefree young lady, Yuna Mizuki. The two lead elegant lives, but they harbor a secret. Otosumi transforms into Kamen Rider MY-TH to fight mysterious monsters known as Fukashigi, and effortlessly defeats these creatures like a mouse. Around the same time, the Zyunishi Doumei (The Twelve Animal Signs Alliance), who also fight the Fukashigi, awaken from their 100-year slumber. Their leader is none other than a cat?! The alliance has begun to realize that their prey is being stolen. The battle between mouse and cat begins now!