Touhai: Ura Rate Mahjong Touhairoku

In the shadows of the city, quiet high school student Kei seeks excitement in his newfound independence. His journey leads him to the world of mahjong, where a fateful encounter with a criminal organization turns his life upside down. Surprising both himself and his opponents with his strategic prowess, Kei not only navigates the high-stakes games but also makes a pivotal choice to rescue Amina, a girl ensnared in a dangerous situation.

As Kei hones his skills, he catches the attention of the enigmatic Hideharu Seki, who introduces him to the underbelly of mahjong parlors and a host of formidable challengers. However, the stakes escalate dramatically when he faces the seasoned player Doujima, pushing Kei to his limits and threatening to plunge him into debt. To safeguard his new life with Amina and rise above the treacherous competition, Kei must summon all his cunning and resolve, turning each game into a battle for survival.