|This article is about a/an rider in Kamen Rider Decade.|
Junichi Kaito (海東 純一 Kaitō Jun'ichi) is Daiki's older brother within his home world and Junichi Shimura's incarnation from Kamen Rider Decade.
Like Daiki, Junichi is also a Kamen Rider, Kamen Rider Glaive (仮面ライダーグレイブ Kamen Raidā Gureibu), setting up the operation to overthrow Fourteen. However, Junichi was actually a double agent who worked to flush out the last two Kamen Riders of their world until Daiki unknowingly captured him, and as a result, played the role as Fourteen's puppet right hand in charge of the area management committee.
However, once Fourteen is destroyed, freeing everyone else from the brainwashing, Junichi reveals the truth with intent to be the next Fourteen. In spite of not being able to kill Daiki, with Tsukasa affirming he still has his free will, Junichi considers his brother dead to him and leaves.
Kamen Rider Glaive
- Main article: Kamen Rider Glaive
- Height: 203cm
- Weight: 100kg
- Punching power: 300AP (3t)
- Kicking power: 500AP (5t)
- Maximum Jump Height: 35m
- Maximum Running Speed: 100m/5 seconds
- Change Keroberos: a Change Card used with Glaive buckle; allows Junichi to assume Glaive form.
- Mighty Gravity: His attack card; initiates Gravity Slash, which is the equivalent of Blade's Category 2, Slash Lizard; but has the power of Blade's Lightning Slash.