gambler densetsu tetsuya
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Manga title: 哲也-雀聖と呼ばれた男 (Tetsuya: Jansei to Yobareta Otoko)
Anime adaptation title: 勝負師伝説 哲也 (ギャンブラーでんせつ てつや, Gambler Densetsu Tetsuya)
A 1997-2004 mahjong manga series by Sai Fuumei and Hoshino Yasushi and is loosely-based on Irokawa Takehiro's novels.