Who Are Fourze's Space Ironmen?

Details emerged on the Space Ironmen set to appear during Kamen Rider Fourze’s summer arc. Grandain and his sister Skydain were created together from Cosmic Energy by the Federation of Alicia; upon awakening, the pair developed their own will and chose to rebel against humanity. Skydain fights with two blades that fold out from her arms, while Grandain carries a chest-mounted cannon called GranBuster X, and the two refer to each other as brother and sister.

A third Space Ironman, Black Knight, works alongside a character named Inga Blink, also from the Federation of Alicia. Rather than relying on offensive attacks, Black Knight is built around strong defensive armor, with a machine gun mounted on his chest and a rapier called Blackest Leaver as his weapon.