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Granted special entry into the Great Raitai Tournament, a poisoned Baki now faces fighters in China, where the next true Sea Emperor will be chosen.
An arrogant karate master named Tadashi Sawamura enters the kickboxing ring to prove his superiority, only to be beaten into a coma by a practictioner of the new art. After recovering, his trainer Endo convinced Sawamura to study kickboxing in order to regain his honor.
During his prime, Keybo Miyazawa's father fought the legendary Iron Kiba. Though they came to a stalemate, Kiba lost an eye and has held a grudge to this very day. Now, in the present, Keybo is the successor of the murderous Nanshin Shadow Style, which can easily kill a man where he stands. His father trains him well, but soon Kiba reappears and the two decide that Keybo and Kiba's disciples must battle to put an end to their feud. With many opponents in his way and no end to the feud (or Kiba's hatred) in sight, Keybo must deliver blow after bloody blow to clear his family's name and uphold the Nanshin Shadow Style.
It is just before WWII, Kasumi Kenshiro hides as a quiet, absent-minded professor teaching literature at a small women's college in Tokyo. Once the 62nd Grand Master of Hokuto Shinken, "God Fist of the North Star," and known has Yan Wang, or "the King of Death," who preserved the peace in the "City of Devils." A fighter of thugs and drug dealers, Kasumi seeks anonymity and a quiet life until the death of his lover, and former brothers, forces him to return to Shanghai to fulfill his destiny and avenge the deaths of his associates.
A "small" new student, Ushio Hinomaru, appears before the weak little sumo club of Oodachi High School. The words "big" and "heavy" are the rules to this sport, which does not fit this newbie one bit, but Ushio surprises everyone. Ushio and the small sumo club climbs its way to the top with a goal to reach the highest rank, Hinoshita Kaisan.