The Underground Arena Saga
The Underground Arena Saga (地下闘技場編, Chika Tōgijō Hen), also known as the Champion Saga, is the first saga of Baki the Grappler manga. In the anime, the Childhood Saga was the first saga and the Underground Arena Saga was the second saga. The saga was comprised chapters 1 to 73 of the manga and episodes 16 to 24 of the Baki the Grappler anime series.