Yukihiro Ino

The protagonist, who aspires to become a novelist, works as a chauffeur to and from watermen and prostitutes while writing. His debut novel is nowhere to be seen, and his girlfriend criticizes his novel and dumps him. Furthermore, he is severely scolded for his high-handed attitude by the woman with whom he is transporting his daughter when he tries to have a relationship with her. Kobayashi, a successful novelist of the same age and an acquaintance of the protagonist, gives him advice on how to complete his novel.

Izumi Sakuragi is a new police sergeant with the Special Investigations Office, which was set up within the Metropolitan Police in November last year. The new investigation team uses DNA analysis and the latest in forensics science to investigate cold cases as well as cases suspected to involve missing persons.

When the Cosmic Invading Grand Racing Crew, Hashiriyan intends to expand their territory with Earth being their next target to take over, five genius mechanics join forces with an alien machine named Bundorio Bunderas to create their own supercars and special equipment to defend the planet as the Bakuage Sentai Boonboomger!