Yoshioka is a young but talented student living a lonely life, one without parents or friends. He earns money by playing mahjong as a rep player, despite his age; his life is a constant fight for survival! "To me, to live is to fight." This is the story of a fearless young man in a dangerous path, one that leads many to destruction; will Yoshioka be able to live on such a risky edge between ruin and survival? (Note: The series first got a canceled 2-volume tankoubon run before getting a compiled 5-volume renkaban run, finally later getting a completed 10-volume online-only run. Numbering should use the online edition.)