Chihaya Ayase has spent most of her life supporting her sister’s model career. When she meets a boy named Arata Wataya, he thinks Chihaya has potential to become a great karuta player. As Chihaya dreams of becoming Japan's best karuta player, she is soon separated from her karuta playing friends. Now in high school, Chihaya still plays karuta in the hope that she will one day meet her friends again.
Ace, Houtaro, and their allies participate in a new edition of the Desire Grand Prix kickstarted by the rogue Chemy X Wizard, who has involved the Jyamato in its diabolical plans. This is the 14th entry of the Kamen Rider winter crossover movies with this entry feature the cast of Kamen Rider Gotchard and Kamen Rider Geats.
A mysterious alchemist studies and experiments to create "living creatures" called Chemies. Unfortunately, the cards holding them that should have been kept secret are accidentally unleashed on the world. High school student Houtarou Ichinose is tasked to retrieve all the Chemies released around the world. Using the Grasshopper Chemy, Hopper-1, and the Steam Locomotive Chemy, Steamliner, he transforms into Kamen Rider Gotchard!
