Araji Tomobishi gets caught up in battles among powerful individuals after reuniting with his former friend Mataka Asamine. Meanwhile, the shadow of a colossal demon appears...?!.

As the war between the Imperial Army and Hellhorde rages on, the Princess, despite being armed with her mythical sword Excalibur, is captured and imprisoned.

Due to the death of his childhood friend, Shinpei returns to his native home, but beneath the surface this island seems to hold some secrets.