The Genius Who Descended Into the Darkness Episode 1

In the Midori Mahjong parlor, Nangou is trying to cancel his major debts by playing some Mahjong but this may be his unlucky day as he is losing badly. Just when the situation gets dire an unknown boy walks in on their game and with a simple word of advice and Nangou is able to survive. This may be the beginning of the legendary Shigeru Akagi who will shake the underworld.