A police novel in which Shinjuku detective Samejima confronts a dark web involving an international criminal, organized crime, and state power. Building on the series' relationships, it portrays the city's underworld and a detective's pride.

In Shinjuku's shadows, Samejima steps into the borderland between state power and crime.

A Dick Francis mystery set in the racing world, following a protagonist drawn into accident and conspiracy who rises again. It centers on professional detail and a resilient lead character typical of his racing thrillers.

An adventure mystery combining racing-world tension with a story of recovery.