With the appearance of otherworldly oni, headed by the massively powerful Kishin, humanity has been forced to serve their new demonic masters. After 150 years of oni rule, the only force left to fight for human freedom are bands of Bushi. This is the story of two young men and their dream of forming the strongest Bushi band!

Musashi and Kojiro try to tackle the powerful Kishin that has appeared, but will the two of them really be able to stand up to the class of oni that has dominated Hinomoto for over a hundred years?

With the arrival of the Takeda Bushi band, Musashi is desperate to defeat the Kishin before they can.

Musashi and Kojiro's journey runs immediately into trouble when a mysterious girl steals their vehicle.

Musashi and Kojiro are forced to find a way to escape the Kosameda Castle prison, while Tsumugi is trapped between her desire to protect her friends and the commands of her domineering father.

Tsumugi struggles with deciding what to do next, and Musashi encounters a mysterious, and unhinged, Bushi in black.

Musashi and Kojiro are out to obtain the Kitetsu Blades they'll need to fight oni, but a mysterious ritual involving the mystical swords might prove to be an unexpected hurdle.

Shiro offers to help Musashi overcome his difficulties with Kitetsu Blades and get stronger, but can he be trusted?

As Shiro preys on the other Bushi who have gathered to hunt a Kishin, Musashi has to find a way to escape the lava pit and help his friends.

Musashi, Kojiro, and Tsugumi face off against Nanao and Shiro, and their only hope for victory might be the mysterious entity inside of Musashi.

With the help of the obsidian goddess, the Kanemaki Bushi have managed to survive the attack by Shiro and Nanao. Before setting out for the next stop in their journey, there's one last thing Musashi needs to do.

Musashi, Kojiro, and Tsugumi are lost in the wilderness when a chance encounter sets them on course for a new adventure.