The popular legendary editor was invited by a powerful comic publishing house in the industry to be appointed as the editor-in-chief for revival. However, soon he fell to his death. There was no suicide note at the scene, and the incident did not seem suspicious. The police finally decided by suicide. However, there are still many doubts about his death, and the editorial staff also talked about it. \”Is it homicide? Or suicide?\” The investigator Yuki Mizuno (Nao Matsushita), who is now in charge of publishing-related matters, and Shinji Daigo (Shinta Furuta), who has become the editor-in-chief, once again jointly investigated the incident. Unidentified ancient paintings were also involved in the process, and it was also related to the largest unsettled case after the war, the \”Downhill Incident\”,