Kazuma Kenzaki (剣崎 一真 Kenzaki Kazuma) is the main protagonist of the Kamen Rider Blade television series. He was chosen by the B.O.A.R.D. organization to use the sealed Category Ace of Spades to become Kamen Rider Blade (仮面ライダーブレイド Kamen Raidā Bureido). He has a good heart and believes in fighting to protect humanity.