Shin Mahjong Demon 2: Mahjong Lawless Zone: The Kuronuma Group, a huge mahjong organization that controls the political and financial circles of Japan from behind the scenes, has been growing rapidly by taking in underground professionals one after another with the overwhelming strength of the second generation leader, Nishimura Hiromitsu. In the midst of all this, a young pinch-player, Matsuoka, who respects Sakurai Shoichi, faces off against a low-level member, which leads to a confrontation between Sakurai and Nishimura...