The last in the series. Sugawara runs into two mahjong cheaters (Ichiro Araki and Mako Midori + sidekick Takuzo Kawatani) whom he takes for friends in need as his naivety prevents him from seeing their true nature.
as
The Viper Brothers
The Viper Brothers Rage Again
The Viper Brothers: Prison Gang 13
The Viper Brothers: 18 Extortion Threats
The Viper Brothers: Four and a Half Years in Jail
The Viper Brothers: The Blackmailers
The Viper Brothers: Up on 30 Charges
The Viper Brothers and the Young General