This mystery follows Takuto, who works at a cabaret club in Shinjuku, as he investigates a stalking incident and a murder and meets Karin, a woman with the ability to glimpse the near future. It is a new-generation crime novel that overlays the atmosphere of the city at night with the unease of psychic ability.

In nighttime Shinjuku, a girl's warning about the future begins to move the case forward.

Invisible Giant Bird is a mystery novel that received the Readers' Prize in the final Suntory Mystery Award. It is remembered through its award history, with little evidence of a later book publication.

An unpublished Readers' Prize work from the final Suntory Mystery Award.

Spring Fortress is Masuhiro Fujimori's novel set around an advertising production company. Selected for an excellence award at the Suntory Mystery Award, it is read less as a puzzle-driven mystery than as a story of work, love, and unsettled middle-age feeling.

Against the background of advertising work, the novel follows a mystery and a set of emotions as they gradually unfold in everyday life.