At first glance, Kei is just an average high school boy. However, he is known in the mahjong underworld as "Ice Cold K", a prodigy who wreaks havoc at high stakes parlors with his ruthless and calculating play style. One day, he meets a man named Dojima, who teaches him the true meaning of gambling.

On the verge of fading into obscurity, struggling idol Nanaka Kitagawa has another source of income besides her regular idol activities… high-stakes gambling mahjong. What she wagers isn’t money but her own body!? The secret side job of an idol who loves the thrill of indulgence and the attention that feeds her need for validation.

After losing everything, a man disappears into the crowds of Shinjuku and takes refuge in a small free mahjong parlor. With only loose change in his wallet, he makes one decision: survive. Inside, the tables are battlefields. Weakness is punished. Hesitation is fatal. Those who refuse to fight are erased. every hand is a test of nerve, deceit, and endurance. Survival may require becoming someone you never meant to be.

Gambling. Mahjong. Death. These are the themes of this fast-paced spy manga where outrageous life-or-death gambles are made daily occurrences and insurmountable odds are overcome. The most hardcore, action-packed mahjong manga you will ever see.

Su amor por el mahjong es insuperable. Con su suerte y habilidades innatas, Shun Okimoto está decidido a vivir con su mahjong. Mientras sus antiguos compañeros de clase se adaptan a la sociedad, él se lanza a los combates en el tablero. "¿Cómo de fuerte soy?"... ¡Ahora se abre el telón de una intensa leyenda!

Hagakure An, a girl who doesn't know how to play Mahjong at all, was dragged into the world of rep-players by Yakuza, because she was mistaken for the Yakuza's rep-player, Daigo, whose appearance resembles her.

Sequel to the adventures of Kiriya Rinji whom, in order to acquire the large amount of money needed to protect his family, aims to become a rep-player in the underground world of Riichi Mahjong.

What if a mahjong delivery service like this really existed…? ♡ This volume collects seven standalone stories originally published in Kindai Mahjong. Wild fantasies run out of control!? Meet the ultra-sensitive, unbeatable mahjong delivery girl ♡ Call her, and she’ll go anywhere ♪ Dangerous delusions, exploding into overdrive!! Author's pixiv: <https://www.pixiv.net/en/users/2631936> Author's twitter: <https://twitter.com/akirayomoyama>

A mysterious monster called the High Beast has taken control of the regions of Eurasia and Africa. Japan has cut off from the mainland to protect itself from this threat. The daughter of a legendary mahjong player discovers that monsters attack whenever a mahjong piece is hit across the board. This allows humans to be separated from the battle and for mahjong players to effectively combat the monsters with robots controlled through mahjong moves.

The 1980's was an unusual decade. The price of land skyrocketed, and the value of money went well above the norm. The numbers that defined the world all spun out of control, launching one of the largest bubble economies Japan had ever seen. For Mahjong, as well, it was an age that saw high stakes games on a scale unlike any age before it. And in this age, a man some call "Kai" lives as a "Mukoubuchi", what true, lone-wolf gamblers are called.

The Achiga Girls' Academy in Nara once defeated regional mahjong powerhouse Bansei High School. It advanced into the national team semifinals but lost to the eventual champion, and the mahjong club was later disbanded. Six years later, elementary school student Shizuno Takakamo befriends transfer student Nodoka Haramura. The two eventually enter Achiga Girls', but Nodoka transfers out of the school in the second year. When Shizuno sees Nodoka on television the following year as the national middle school individual mahjong champion, she decides to revive Achiga's mahjong club.

Kiriya Rinji is 30 years old, divorced, and unemployed. His only talent is playing online mahjong. Needing a way to make money to pay for child support, he goes to the seedy Kabukichou district to play real mahjong for cash. Will his online skills translate to real-life winnings?

"Senpai, please play me!” Isamu Asano spent his days alone in a corner of Sakuragawa High, absorbed in online mahjong. Then one day, his highly social underclassman Sakura Kamiya invites him to join the school’s mahjong club and he finds himself trying real, face-to-face mahjong for the first time. Confident in his skills, Asano expects to dominate. But whenever Kamiya-san sits in the kamicha seat, his specialty, calling tiles, stops working, and he can’t seem to get the upper hand at all. Is it the psychological tension unique to live play? Or is she reading his thoughts? As he wrestles with those questions, he gradually realizes that Kamiya’s presence is growing larger in his heartin this mahjong romantic comedy.

At a prestigious girls' school, Sae, a shy high schooler didn't fit in with her classmates. Her daily routine during lunch break consists of playing her Mahjong game on her phone. Due to her hobby being maybe too old-fashioned, she kept it a secret, until she was found out by her class' charismatic rich lady, Chise! Will they with their diametrically different personalities get along through playing Mahjong...?