After 18 years of fighting and pushing his body beyond its natural limits, Baki Hanma is almost ready to face his father Yuujirou in one final battle. Publicly challenging his father to a revenge bout for the title of "World's Strongest," Baki sets out to train himself even further. He targets the few men who are said to hold comparable power to Yuujirou, including the "Unchained" bounty hunter Biscuit Olivia and a prehistoric human named Pickle revived from the Mesozoic era. The demonic Yuujirou monitors his son's training with a growing anticipation. The "Ogre" sees Baki as little more than a savory meal marinating for him to devour. Still, Yuujirou exists in solitude at the top of the mountain of strength. He yearns for a combatant to rise up and prove themselves a worthy opponent capable of giving him a challenge. Despite viewing his son as pathetic, Yuujirou can't help but hope his child will be the one to give him the thrill of equal combat he has lived so long without. As Baki seeks to understand his father's monstrous legacy, Yuujirou comes to terms with his true feelings toward his son. The two Hanmas advance toward their climactic fight to decide who is really the "World's Strongest." [Written by MAL Rewrite]

Beneath the legendary Tokyo Dome lies an underground fighting arena known as Kourakuen. Here, warriors display their prowess in all manner of martial art disciplines, from the quiet control of kenpo to the heavy hits of boxing. There are only two real rules in this arena: no weapons allowed, and no rewards will be obtained. Fighters here live and die for only their honor and the chance to make their name live on forever. Teenage grappler Baki Hanma strives to earn a place among Kourakuen's fiercest combatants, utilizing a unique fighting style created through years of harsh training and suffering. Baki is the only known son of the infamous terror Yuujirou Hanma, a violent man known and feared worldwide as the "Ogre." Yuujirou's brutal parenting and savage international crimes have filled Baki with trauma and hatred, fueling him to become as powerful as possible. In a quest for revenge against his father, Baki battles the most fearsome men the world has ever birthed. Through bloody victory and crushing loss, will Baki ever be strong enough to stand his ground against Yuujirou? [Written by MAL Rewrite]

Growing complacent with his title of "World's Strongest Boy," Baki Hanma spends his days in a haze of boredom. After finally settling the feud with his demonic father Yuujirou, Baki defends his title in the Kourakuen Underground Arena while stifling yawns brought about by the ease with which he defeats his challengers. Baki's friends and mentors also struggle with this new peaceful stasis, completing great feats of strength training with little enthusiasm. Soon, Japan is shaken by the reveal of a long-gestating science experiment that results in the successful cloning of legendary samurai Musashi Miyamoto. The famed warrior relishes in testing his strength against Baki and the other fighting icons of Tokyo, but he struggles to assimilate with the modern era. Miyamoto clings to his ancient ideals of honor and dueling to the death, a philosophy that clashes with the more tranquil present. As the resurrected swordsman attempts to rise to the top of this unfamiliar society by cutting through Baki's friends, he finds himself on a collision course with the vengeful teenager. Baki embraces this rush of excitement and meets his new rival head-on. [Written by MAL Rewrite]

Baki (グラップラー刃牙, Gurappurā Baki) est un shōnen manga de Keisuke Itagaki, prépublié depuis 1991 dans le magazine Weekly Shōnen Champion de l'éditeur Akita Shoten.