In the second round of the Grand Tournament of Unabara, the Ogame style faces off against the spear-wielding Myojin style in a series of one-on-one battles. Following the first match between Gama and Mido's "Demon Splitter" is Zenmaru, Gama's senior apprentice, versus Sakakibara's "Crimson Ripper." The battle gets tough for Zenmaru against Sakakibara, who wields his deadly modified spearhead with ease, but Zenmaru has his own reasons why he can't afford to lose...! It's the big showdown: the Ogame style vs. the Myojin style!

At long last, the main battle of the Grand Tournament of the Shogunate begins! Before the main battle, Iori receives a visit from Yagira, the Shogun's military strategist. Yagira fills Iori in on the secret of the Shogun's family that lies behind the scenes of the tournament, as well as the existence of a formidable warrior! Meanwhile, Gama is paid a visit by Shimon Kudo of the Muho style. Surrounded by three of the strongest disciples of the Muho style, Gama finds himself faced with a big choice!

The Unabara Domain, the "Den of Demons" where martial artists gather. The battle in which 31 styles compete to be named strongest in the land, The "Grand Tournament of Unabara," has begun!! The first round is a clash between four styles. Gama Kurogane, fighting solo for the Ogame Style, must next face off against the Nakaizumi style's "Mad Bow"!! Having been deeply wounded in his first match, just how will Gama's sword fare against this bow?!

Unabara Domain—home to nightmarishly strong students and masters of martial arts of all kinds. The lord of the Unabara has decided that whichever of his sons discovers the strongest martial arts style will be his heir, but when 28th son Naoyoshi Washizu decides on Ogama-style practitioner Gama Kurogane, son of notorious father and scion of a “weak” style, to represent him, the odds seem bleak. But between Naoyoshi's determination and Gama's hard-earned strength, they may yet come out on top!

It's been two years since the infamous Unabara Tournament, but things aren't over for Iori Sengoku-in fact, he's received a summons from the Tokugawa Shogunate. He's to join in battle against the Shogunate's top martial artists to determine the strongest of the lot. Not only that, he's accompanied by the sword-crazy Ran Ichinose. No matter what, this is an adventure you won't want to miss-the thrilling sequel to Gamaran!

On the exile island of “Ashura's Prison,” the main battle of the Grand Tournament of the Shogunate finally begins! Iori's first opponent is Kitaro Mashima of the Myojin style, with whom he shares a fated connection-Kitaro is none other than the elder brother of Sasuke, the "Crimson Ripper" of the Four Divine Spears against whom Zenmaru fought in the Grand Tournament of Unabara two years prior. Kitaro swears revenge, descending upon Iori like a wild beast, but it's nothing Iori can't manage and he quickly gains the upper hand. However when Kitaro's ear is sliced off, he undergoes a bizarre transformation and reveals his true colors!

At long last, the fateful collision between Gama and Muraku Matsumoto begins! Gama finds himself struggling against chain-sickle master Muraku's ever-evolving attacks. He manages to find an opening and counterattack with his Purple Flash, only to discover that Muraku is equipped with “chain-mail armor”! Cornered with only a slim chance of victory, it's time for Gama to launch the fastest technique he knows!!

After Gama and the others breach Unabara Castle gates, they find a place to hide and regroup, however Zenmaru can't help but toil over his own lack of ability. He goes off looking for enemies in order to become stronger, only to be attacked by one of the strongest of all Muho style warriors, Kiyomori Yamanoue! Faced with an opponent clearly out of his league, Zenmaru must draw his colossal sword, the Sadanaga! The true payoff of Zenmaru's year-long training will finally be put to the test!

Just like that, the Grand Tournament of Unabara has suddenly come to an end. The tournament itself was only a set-up to Gama's father Jinsuke's grand scheme to take over the country… And in order to achieve that goal, the Muho style has abducted Naoyoshi after completely and utterly defeating Gama. In order to get Naoyoshi back, Gama vows to become stronger than ever! Gama and the others head to “Juren Village,” a sacred ground for the Ogame style, to begin their training!

Gama and the others storm Unabara castle only to find their path immediately blocked by a monstrous giant lurking beneath the ground-Arimaru! Gama and his allies struggle to ward off Arimaru's underground assault until Shinnojo puts his life on the line and successfully brings her to the surface! However, it's Zenmaru who steps in to fight Arimaru in Shinnojo's place. Determined to evolve as a warrior, he draws his Sadanaga against a deadly foe!