Darkside Rain (2018)

In his youth, Genshichi and his brother Hanzo tried to kill the boss of the Maesaka family. Genshichi got hurt and was saved by a hairdresser named Ofumi. Later, when Hanzo brought their share of the job, enemies led by Jingo showed up seeking revenge. Genshichi left with Hanzo, leaving Ofumi, who was pregnant. Twenty-five years later, Genshichi, now old, met a young man named Hikotaro. They tried to kill the boss of the Takehara family. Genshichi got sick and only managed to hurt the boss. They escaped and got help from Mohei and his granddaughter. From then, Genshichi decided to live an honest life. But enemies hired by the boss of Takehara and Hanzo, who was once his brother, were after them.