Shouichi Maguichi is a character from the Kamen Rider Agito SIC Hero Saga story Heaven's Door. Transformed through the Seed of Agito, he became the elusive Mirage Agito (ミラージュアギト Mirāju Agito?).
As a young boy, Shouichi Maguichi was put on TV but was blamed for cheating on the programs for using a hidden camera. Wanting to cure his sick mind he worshipped the Dog Orphnoch/Dog Lord and was told to feed on the despair of the public. While going on a killing spree, he was stopped by Agito and the others. After his partner, Dog Lord/Orphnoch died, he evolves into Mirage Agito. In a fight with Kamen Riders Agito and Gills, despite gaining the upper hand he is defeated by the strategized use of the Shining Caliber and a Shining Rider Kick. Maguichi is then arrested and is given an unspecified treatment, his fate is currently unknown.
He mostly fights as Kamen Rider Agito. He transforms into Mirage Agito in order to avenge his partner/pet.
- Height: 195 cm
- Base weight: 95 kg
- Punching Power: 7 t. (15 t. at full power)
- Kicking Power: 15 t.
- Highest Jump: 30 m.
- Top Speed: 100 m. per 5 seconds
- Senses: x10
- Defense: 6/10
Ground Form (グランドフォー, Gurando Fōmu) is the first of Agito's numerous forms. This form harnesses the power of the earth, turning Maguichi's entire body into a lethal weapon, with bone-crushing blows and crippling locks. Of all the forms, the golden Ground Form is the most balanced, with power, speed and strength working in harmony to make the most of its capabilities.
At its peak, the crest horns upon his head opens, pushing all of Agito's capabilities to their fullest, emanating beneath his feet, into his legs to execute his Rider Kick (ライダーキック, Raidā Kikku), a jump kick of incredible raw power and force; with a force of 30-tons.
- Height: 190cm
- Weight: 88kg
- Punching Power: 12t
- Kicking Power: 28t
- Maximum Jump Height: 60m
- Maximum Running Speed: 100m/4s
After the transformation, Maguichi becomes Mirage Agito. Visually, he resembles a white colored Kamen Rider Agito Shining Form with an extended left horn, a blade attached to his right arm, and a small cape extending from his left shoulder. This form boasts extraordinary physical prowess, enough to overwhelm Agito Shining Form and Exceed Gills.
- Maguichi is not even his real name, but an anagram of the romanization of Tsugami (Tugami-Maguti).