Wealthy heiress Reiko Hosho leads a double life as a novice detective. One day, an incident erupts at a birthday part...

Mystery butler Kageyama concocts a peculiar plan to catch the criminal lurking in a luxury hotel, after which Reiko a...

While investigating the murder of a real estate tycoon, Reiko examines an erased dying message, a bloody trophy, and ...

With Kageyama as her chauffeur, Reiko and her friends visit a crowded summer festival, where a cracked smartphone is ...

Women of differing heights are spotted at the crime scene. Kageyama suspects that elevator shoes disguised the murder...

After a delivery man falls to his death, Reiko and Kyoichiro investigate his connection to popular VTuber "Kuru Kuru-...

A famous painter is stabbed in his own studio, pointing to his masterpiece wall painting "Sleeping Beauty" just befor...

Kageyama locates a secret passageway to solve the locked-room murder mystery. Upon encountering a deranged woman wiel...

Journalist Ryota Ishiguro's body is found on the riverbank, but although the cause of his death is drowning, the body...

A woman's body is found in a bed of blooming roses at the prestigious Fujikura residence. The victim is Toshio Fujiku...

Reiko attends the wedding of Sawamura Yuri, who she cherishes like a younger sister. The groom is Hosoyama, a consult...

Trouble strikes the Sawamura family again when Miyuki Sawamura is kidnapped and a ransom of 50 million yen is demande...