Memoir of Japanese Assassinations
Masaaki Okabe as Iba Sōtarō: A fencing instructor, director of Bunyukan Private School and 10th generation of the shingyōtō-ryū swordsmanship. He is also the perpetrator who killed corrupt politician Toru Hoshi in 1901. Sōtarō was guilty for first degree murder and sentenced to life imprisonment. He was transferred to the Kosuga Prison in 1902 for the rest of his life until his death in 1907.