Name: Yamato Kuwaki Gender: Male Age: 17 Height: 169cm He has a good-natured, bright, and energetic personality. He is popular because he is reasonably good at both sports and academics. He attends the same high school as Guest. He transforms into Kamen Rider OOO. He uses a sword called the Medajalibur and the Tora Claws on his arms. His fighting style is melee combat. By using the O-Scanner to read the OOO Driver, he can unleash his "Scanning Charge" finishing move, the Tatoba Kick. Transformation sequence: He inserts the Taka, Tora, and Batta Core Medals into the OOO Driver, uses the O-Scanner, and the transformation is complete.

Name: Ena Kunagi Gender: Female Age: 16 Height: 153cm She is quiet and reserved, but a kind-hearted girl who is very considerate of others. Petite and cute, she is secretly popular. She attends the same high school as Guest. She transforms into Kamen Rider Kivala. She fights using a sword called the Kivala Saber and various kicking techniques. Her fighting style focuses on swordsmanship. Her finishing move involves coating the Kivala Saber in purple light to slash through enemies. Transformation sequence: She holds a small bat-like monster called Kivala in her right hand. With Kivala's call of "Chu♡," she is enveloped in hearts, and the transformation is complete.

Name: Takuto Fujima Gender: Male Age: 16 Height: 167cm He is a truant and man of few words, but surprisingly easygoing once he gets into the swing of things. He attends the same high school as Guest. He transforms into Kamen Rider Snipe. He fights using a gun called the Gashacon Magnum. His fighting style is long-range shooting. His finishing move involves loading a Gashat into the Gashacon Magnum to fire a powerful beam shot. Transformation sequence: He inserts a Gashat into the Gamer Driver and opens the lever to complete the transformation.

Name: Riana Yamamoto Gender: Female Age: 18 Height: 174cm She has a bright and kind personality and an excellent physique. She attends Seifu Girls' Academy. She transforms into Kamen Rider Jeanne. She is a master of general martial arts, excelling in kicking and joint-locking techniques. Her fighting style is melee combat. Her finishing move involves pushing down the stamp base, jumping high into the air, and delivering a powerful spinning flying kick. Transformation sequence: She inserts the Cobra Vistamp into the Libera Driver and pushes down the base to complete the transformation.

Name: Nagisa Kaede Gender: Female Age: 17 Height: 165cm Cool and composed with a bit of a sadistic streak, but she has a strong sense of justice. She attends Seifu Girls' Academy. She transforms into Kamen Rider Sabela. Using the Eneiken Noroshi sword, she specializes in swift thrusts and elegant swordsmanship; she can also turn her body into smoke. Her fighting style is swordsmanship. Her finishing move involves releasing materialized smoke to restrain the enemy, followed by a sharp, honed slash that pierces vital points with precision. Transformation sequence: She inserts the Konchu Daihyakka Wonder Ride Book into the Eneiken Noroshi to complete the transformation.