In the Ken Empire, the idea of justice is nothing but a mere illusion. Lord Keiro, the insane Shogun of the Imperial Army, roams the land causing havoc as he searches for the revered sword that will grant him godly powers. Taito, a powerful star who has taken on a human form, stands in Keiro's way and vows to avenge those who fell victim to the villain's wrath. However, Taito must be careful not to let his newfound powers consume him. If he's not cautious, he could obliterate himself with his own strength. To hone his abilities and become a skilled martial artist, Taito must seek out the guidance of other star-born warriors who possess the power to take down a corrupted empire.