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!

Will the Muho style's plot to assassinate the Shogun come to fruition at last? With the help of Ikariya, a Muho spy who infiltrated the Shogunate, Jingu finally manages to corner the Shogun. However, the “fortress wall of the Shogunate” Kyoyasai Yagira now stands in his way! With two powerful warriors surrounding him, Jingu now finds himself between a rock and a hard place. Has he fallen into the Shogunate's trap…?!

The "Grand Tournament of Unabara" - a competition where martial artists of monstrous proportions put everything on the line, skill, body and soul, even if it costs them their lives. Gama Kurogane, still injured and fighting solo after two consecutive wins, must now go up against the Kyosen style, which specializes in physical techniques that destroy its victim's internal organs. What will happen to Gama, who finds himself caught in the relentless onslaught of the Kyosen style's Daimaru brothers?!

The Ogame style may have survived a sudden attack from the Kasane-Manji and Tamagakushi styles, but they have yet to advance to the third round. Their next opponent, arranged by Ranmaru Ito, is the "Four Spears" of the spear-wielding Myojin style. It seems that they have some sort of connection with Gama's father, Jinsuke, as well. What's more-their lord is none other than Naokatsu, Naoyoshi's only trusted younger brother! The battle begins, a battle of fate that neither party is willing to yield!

Gama and Kashitaro, and Shinnojo and Zenmaru split into two groups and make their way to the Unabara domain, where Jinsuke awaits their arrival. Despite their small numbers, the disciples of the Ogame style are faced with a series of attacks by Muho style assassins! One of whom is Banri Omiya of the four divine spears. Banri has long been honing his skills in order to settle his score with Shinnojo. The battle between two geniuses is heating up as they fight to the death over their opposing convictions...!

Upon arriving at the inn, Ran seeks the power to live by the sword and asks Iori for his tutelage. However Iori seems to have a lot on his mind after his battle with Raio. Before he can catch his breath, yet another of the Hundred Swords comes to attack. Iori finds himself surrounded by more than 30 skilled fighters, including rank number 54, Ikki Obayashi. Iori demonstrates demonic godlike swordplay only to find himself faced with an even more formidable foe!!

What happens when the “Unlimited Divine Soldiers” launch an attack on the Suruga domain residence? It's the clash of Shakujii, the martial arts instructor of the Suruga domain, and Ramon, the leader of the Unlimited Divine Soldiers. Their battle takes a fierce turn and finally comes to an end!! Tadaie Hiramatsu shows his true powers when surrounded by his enemies, but just how strong is he?! Meanwhile Shinnojo, the head of the Ogame style, pays a visit to Gama to find out the real reason as to why Gama has become the new head of their sworn enemy, the Muho style!

It's time for Zenmaru Ichinose to put his resolve to the test! Zenmaru, who has always been aware of the gap between himself and Gama and Iori, steps up to prove his swordsmanship against Homare of the Unlimited Divine Soldiers! Who will be the victor in this battle of brute strength versus brute strength...?! Next up is a one-on-one battle between Gama and Yagira, at the behest of the shogun himself! What is supposed to be a sudden-death match turns into an unexpected showdown of tactical skill...!

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?!

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!