 If you liked
Touhai Densetsu Akagi: Yami ni Maiorita Tensai
|
 ...then you might like
Rainbow: Nisha Rokubou no Shichinin
|
Both shows are set in the same epoch and conjuncture,in the opressive times after the japanese defeat in WWII .Both shows deal with the dark side of the criminal/yakuza underworld .Rainbow is focused more on the emotional struggles and metamorphosis of the characters,while Akagi focuses more on the logical part,showing its analytic side in the strategy of the mahjong games,without excluding the humanity and flaws of the characters.Both shows have the same atmosphere to them.