No Mark Bakuhaitou

Teppeki Tamotsu, Atari Daisuke, and Chuuren Potomi are college students who attended the same university and often played mahjong at the "Dora Douraku" parlor. One day, a man named Bakuoka Danjuurou (Nicknamed Bakudan) suddenly appeared in front of them. Teppeki and Daisuke tried to challenge Bakuoka, but they lost. After that, Bakuoka was recommended by an old man named Inase Kouichi to participate in the preliminary round of the Master's Tournament, one of the three major titles in the mahjong world. With his genius at reading his opponent's tiles and aiming for the excess tiles, which he named "Bakuhai", Bakuoka defeats various opponents and wins more titles. Is this "Bakuhai" really invincible? That's up to Teppeki to discover!

(Source: Wikipedia Japan, translated and edited)