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.

• Goki Maeda
• Akane
• Hidekazu Ichinose
• Satoshi Ichijo
• Ayu Higashi
• Miyabi Koteyama
• Yasukaze Motomiya