This article is about a/an ally in Kamen Rider Drive.

Kyu Saijo (西城 究 Saijō Kyū), who's real name is Kenta Imai (今井 健太 Imai Kenta), is a nerd who loves occult stuff. The Special Investigation Unit's Network researcher, his approach to cases can sometimes get him into some trouble with the team. Outside the Unit, he also had a successful job as a writer and went out on certain occasion for autograph session. He likes watching the anime Murmur Mansion and had a doll of it.

In episode 20, it was revealed that he had a Roidmude twin, Roidmude 072, whom differed from the others as he only wanted to live with humans. In certain occasions, 072 would took Kyu's place in the Special Investigation Unit and help them in tracking Roidmude culprits. The copy was killed by Medic after he was unmasked. Kyu apologised to his teammates but they forgive him as that Roidmude meant no harm to them.

Behind the scenes


Kyu Saijo is portrayed by Kenta Hamano (浜野 謙太 Hamano Kenta).


His net name Kyu Saijo (西城 究 Saijō Kyu) is a homonym of the Japanese phrase The Highest Level (最上级 Saijō Kyu). For his profile in a network group.


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