Yujiro Hanma wreaks havoc in the ring as Baki ushers in the first match of the Quarterfinals. However, both immediately encounter the unexpected. While Yujiro is caught off guard by his opponent's strength, Baki is confronted with the most difficult decision of his life.
Meanwhile, a man known as Doctor Buren is on the verge of the greatest breakthrough in the history of human strength training. His serum could give man power beyond the capabilities of any living creature... and a volunteer has just stepped up for the first trial.
Contains episodes 37-40:
The Ace and the Serpent
How to Build a Better Monster
DVD Features: Episode Summaries, Textless Songs, Stills, Character Profiles.
Spoken Languages: English, Japanese, English subtitles.