User: Isamu Fuwa Isamu Fuwa is the captain of the anti-AI special task force "A.I.M.S." who fights as Kamen Rider Vulcan. "Gorilla Prying": Originally, the transformation item "Progrisekey" is designed to deploy only after authorization. However, in the early stages, Fuwa would ignore authorization and force the keys open with raw physical strength to transform. Because of this feat of power, fans affectionately call him "Gorilla." Why could he pry them open? The secret behind his ability to ignore the rules and force them open is related to a special transformation chip embedded in his brain, which is revealed later. He has various transformation forms, with "Shooting Wolf" being his base form. He is called a gorilla because he pries open Progrisekeys.

User: Rintaro Shindo Basic Transformation System: He loads the blue-covered Wonder Ride Book "Lion Senki" into the transformation belt "Seiken Swordriver." He transforms by unsheathing the holy sword of water, "Suiseiken Nagare." Eclairs (Sweets): A favorite food that is indispensable when talking about Rintaro. Having been raised entirely within the organization's headquarters, he was ignorant of the outside world, but when he ate an eclair for the first time, he was deeply moved, saying, "I can't believe something this delicious exists in this world!" Since then, they have become his absolute favorite, and his usual serious expression turns into a smile whenever he eats one.

User: Daiji Igarashi The younger brother of the protagonist (Ikki) and former captain of the government-affiliated special task force "Fenix." Transformation Item: Transformation belt "Two-sidriver" + "Bat Vistamp." Family and Public Baths: His family runs a public bathhouse (Shiawase-yu), and he cares about his family (Ikki, Sakura, and his parents) and the family bathhouse more than anyone.

User: Kagero He is the "inner personality (the demon Kagero)" who shares the belt. When he pulls the belt's weapon downward (Blade Mode), he transforms into the black, wicked Rider "Kamen Rider Evil." Kagero is Daiji's demon. Super Spicy Curry: While Daiji himself prefers normal flavors, his demon Kagero loves extremely spicy curry. When taking over Daiji's body, he would happily eat curry covered in spoonfuls of spices. He is sharp-tongued. A human demon.

User: Keiwa Sakurai A perfectly ordinary, kind-hearted young man currently job hunting. Transformation Items: Transformation belt "Desire Driver" + "Ninja Raise Buckle," etc. Tanuki Soba: His favorite food, which is also the origin of his Rider motif (Tanuki). The scenes where he happily eats the soba made by his older sister, Sara, are quite memorable.

User: The heroine, Rinne Kudo, transforms into this Rider. Transformation Items: Using the "Alchemisdriver" and the "High Alchemist Ring," she performs alchemy (transformation) by combining two Chemy Cards. Lunch Box: In the series, there is a heartwarming scene where she happily eats a "Special Gotchard Lunch Box" made by the protagonist, Houtaro Ichinose. Female. Student. Cool personality.

User: Hanto Karakida, a freelance writer, transforms into this Rider. Basic Form: Based on "Chocodon Form," he wears armor that looks like cracked brown and white chocolate. Transformation Item: He transforms by loading the chocolate monster "Chocodon Gochizo" into the "Valenbuster," which also serves as a gun-type weapon. Black Coffee: He prefers a mature, bitter taste. He publicly states, "I don't eat sweet things," taking a stance in direct contrast to the protagonist Shouma (Gavv), who loves candy and sweets.

User: Kensei Odaka, a former detective of the Public Security Bureau's Occult Crimes Division and a former agent of the top-secret defense organization "CODE," transforms into this Rider. Transformation Item: He transforms by loading a capsule-shaped item called a "Shadow Capsem," which contains nightmares, into the "Nox Driver." Black Coffee (Connoisseur): Like a "mature man" who is a former agent and detective, he prefers dark-roast black coffee. In the series, he is often seen drinking it during missions or while organizing his thoughts. He is mostly silent and speaks in a roundabout manner.

Transformation System: Uses egg-shaped items called "Ride Eggs." A major characteristic is that he wears the same transformation belt as Mys, the "Mys Driver," and further equips the "Hammer Bone Buckle" to transform. A cat-themed Kamen Rider.