Prime Video has unveiled “ Hanzaisha ,” a Japanese original drama series adapted from Ota Ai ‘s novel of the same name. The series will roll out weekly over four consecutive weeks. Matsunaga Daishi – whose feature “Egoist” drew critical recognition in Japan and abroad – directs, with a screenplay by Sakurai Takeharu, a frequent contributor to the long-running “Aibou” television franchise and the theatrical “Detective Conan” series. Sakurai’s work on “Detective Conan: Black Iron Submarine” helped make it the first entry in that franchise to cross JPY10 billion yen ($62.4 million) at the Japanese box office. Music is by composer Kawai Kenji. The story follows Shigetou Shuji (Mizukami Koshi), the sole survivor of a mass stabbing at a crowded station plaza. When the suspected attacker – identified as a drug addict – dies at the scene, a stranger appears at the hospital to warn Shuji that he has 10 days to stay alive.…