■New wife's assault at midday

Binya Shoji and Tokyo Medical Devices were scattering sparks in medical equipment sales to medical universities. Eto, an elite salesman at Koya Shoji, killed a rival president of Tokyo Medical Devices and committed suicide. His wife Akiko's older brother, Saeki, who was a lupowriter, was informed that Eto had kidnapped her before she died. Akiko was raped and kidnapped by Nozawa, a murderer. But was Eto really a murderer? Saeki, who learned that he was being threatened by Tokyo Medical Devices for bribery at the University of Medicine, challenged a black mystery.