By chance, Shoma meets a tough-looking man named Sujimoto and decides to help him with his work as he is asked.

Then Sujimoto is attacked by a Granute. Shoma receives a call from the Gochizo and rushes to the scene, where he transforms into Gavv and challenges the Granute to a fight.

The Kamen Rider appears! Hanto receives the news from Sachika and witnesses Gavv's battle...!?

Shoma mistakes the vegetables in the field for wildflowers and is caught by the owners of the field, Ryoji and his wife Mutsuko. After the misunderstanding is cleared up, Shoma is welcomed kindly by the couple.

Hanto visits Granute researcher Suga and begins researching the Granutes. When Hanto is told about the true nature of Granutes, who kidnap humans to spice up sweets, he...!?

An agent appears in front of Shoma, who is spending time with an elderly couple. Shoma escapes and confronts the agent, but then an unexpected person appears...!