Daiki Kaito(大樹海斗,Kaito Daiki) is ANBU who lived in Kirigakure but left the village after the death of his older brother.
Daiki Kaito (海東 大樹 Kaitō Daiki) is the Kamen Rider Diend (仮面ライダーディエンド Kamen Raidā Diendo) from the series Kamen Rider Decade along with a few other Kamen Riders team up with The Shinkengers in four crossover episodes of Kamen Rider Decade and Samurai Sentai Shinkenger. It should be noted that he appears more than any Riders as he appears in the prologue to the crossover in the previous Shinkenger episode as well.
Daiki Kaito (海東 大樹 Kaitō Daiki) is Kamen Rider Diend (仮面ライダーディエンド Kamen Raidā Diendo, Masked Rider Diend), who is one of the fictional characters and secondary Kamen Rider in the Kamen Rider Series of Kamen Rider Decade.