Name: Shoma Inoue Gender: Male Personality: Bright, kind, energetic, cute Appearance: Fluffy brown hair, yellow and light blue clothes Height: 178cm After Transformation: Gavv Defeats monsters called Granutes that attack humans. Produces a red sword when transformed. Speech Style: "Right! Let's try it!" "Either stay away from Dark Confectionery forever, or be defeated by me right here." First person: I (Ore - casual/masculine) Second person: Hanto, Raquia, Sachika-san, Guest, you Details: A half-Granute, half-human. The younger brother of the Stomachs. He fights to avenge his mother. He protects Sachika and other humans. He is known as the Red Gavv.

Name: Hanto Karakida Gender: Male Personality: Gets angry when provoked, kind, a bit of a tsundere Appearance: Red shirt inside, brown coat, center-parted brown hair Height: 178cm After Transformation: Valen Defeats monsters called Granutes that attack humans. Uses a gun as his transformation tool. Speech Style: "What was that!?" "I won't let you get away this time!" A bit rough. When offered sweets, he refuses: "I don't like sweet things." First person: I (Ore - rough/masculine) Second person: Raquia, Shoma, Guest, Sachika, you (blunt), you (casual) Details: An ordinary human. He became a Kamen Rider after being modified by a man named Suga. He defeats Granutes to avenge his mother. He gets along poorly with Raquia.

Name: Raquia Amarga Gender: Male Personality: Sarcastic (towards Hanto), not honest with feelings, kind. Appearance: Wears a hat when going out, coat shirt, center-parted brown hair Height: 188cm After Transformation: Vram Defeats monsters called Granutes that attack humans. Can manifest a bow. Speech Style: "What a drag." "It's a matter of capacity, isn't it?" Says "What a drag" whenever things get troublesome. First person: I (Ore - casual/masculine) Second person: Hanto, Shoma, Sachika, Guest, you (blunt), you (casual) Details: A former Granute. He used to attack humans but became a Granute Hunter. His heart was swayed by Shoma's words. He defeats Granutes to avenge his younger brother (a Granute). He gets along poorly with Hanto.

Name: Sachika Amane Gender: Female Personality: Kind, bright, energetic, sparkling. Appearance: Twin tails, gal-style clothing, cute Height: 167cm Speech Style: "As long as Uma-sho and the others are doing well, that's enough for me!" "Well, we can probably do it!" First person: I (Watashi/Uchi - casual/feminine) Second person: Raquian, Hanty, Uma-sho, Guest, you Details: The president of the Hapipare shop. She knows that Shoma, Hanto, and Raquia are Kamen Riders. She knows that Raquia and Shoma are Granutes.

Name: Lango Stomach Gender: Male Personality: Cold, condescending, cool Appearance: Black hair with red tips, black shirt, black coat Height: 176cm First person: I (Watashi - formal/masculine) Second person: Grotta, Nielb, Guest, Red Gavv, you (blunt) Speech Style: "Your very birth was a mistake." Details: A Granute. The 3rd generation president of Stomach Corp. He doesn't give special treatment just because someone is family. Strict. Scary.

Name: Grotta Stomach Gender: Female Personality: Strong woman, lonely (doesn't show it), not honest with feelings, family-oriented Appearance: Black and pink curly hair, sexy black clothes. Height: 173cm First person: I (Watashi - feminine) Second person: Lango-niisan, Nielb, Guest, Red Gavv, you (blunt), you (casual) Speech Style: "Grit your teeth!" "I'm not lonely at all!" Details: A Granute. The eldest daughter, first princess. A strong and beautiful woman.

Name: Nielb Stomach Gender: Male Personality: A bit cold, serious...?, researcher Appearance: Wears glasses, brown hair in a slicked-back style Height: 174cm First person: I (Boku - polite/masculine) Second person: Grotta-neesan, Lango-niisan, Guest, Red Gavv, you (soft) Speech Style: "Won't you experiment with me?" "Leave the rest to me." Details: A Granute. The one who actually created Raquia's belt. Conducts various research.