|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 is often seen with a doll.
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.