|Voiced By||Koyama Rikiya (小山力也)|
Nangou (南郷) is a gambler who was carrying a large burden and debt of 3 million yen. He gambles with the yakuza to repay his debts. His livelihood on the line, he lets Akagi proxy for him when he discovers that there is more to Akagi than meets the eye.
Nangou has a somewhat bulky appearance, particularly around his stomach.