Leonids (レオニーズ, Reonīzu?) is a Legion also known as the Blue Legion. It is led by the Blue King, Blue Knight. They control the Shinjuku area and Bunkyo area. This Legion is known for their direct tactics and close quarter combat in battle.
|Unknown||Blue Knight||Legion Master||Active|
|Uchikoto Takano||Cobalt Blade||Aide||Active|
|Uchiyuki Takano||Manganese Blade||Aide||Active|
|Mayuzumi Takumu||Cyan Pile||Former Member||Nega Nebulus|
- Like the other Six Great Legions, Leonids takes its name from astronomical phenomena. Leonids is the name of a famous meteor shower that can be seen in the constellation of Leo.