Not a lot of people know that one of the most talented and ruthless Mahjong players in the city is a young high school boy. Kei is a teenager of few words, but his observation skills, unwavering will and experience in the game allows him to survive in a world full of powerful, rich and dangerous characters. Kei is currently hiding a girl named Amina who has entered the country illegally and protecting her from being deported. He spends his days sleeping through class and his nights playing high stakes Mahjong, waiting for when a worthy opponent arrives.<br><br>
(Source: MangaHelpers)

The sequel to Tohai, picking up where it left off. The subtitle is "A Silent Requiem For a Mahjong Life-or-Death Battle".

A spinoff of Tohai starring Doujima, nicknamed "Lion".

Money, women, organs. Kei, a high school boy, frequents the underground mahjong parlor teeming with desires, earning him the moniker 'K of Ice' in the underworld due to his cold-hearted strategy and stylish gameplay. Rumors also circulate that he keeps a girl at his home.<br><br>
(Source: Pony Canyon)

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