Masaka Kubota plays high-school student Keita, who leads a secret life as a "network investigator" for a secret organization. In the introductory episode, Keita has moved to a new school in Tokyo but doesn't like it. His best friend from his previous school comes to Tokyo and they run away together. Passing through a construction site the pair are attacked by a robot, but are then saved by a man named Takimoto and his strange sidekick — a cell phone with arms and legs. This Buddy Keitai cell phone with "human intelligence capabilities" will go on sale in Japan in April.
as Keita Arishima
as Sosuke Takimoto
as Karen Arishima
as Harumi Arishima
as Kentaro Arishima
as Daiki Kirihara
as Toko Asano
as Yuri Midou
as Serizawa
as Katsuhiko Shimura
as Shugo Kaito
as Chigusa Mimasaka
as Company President