The series takes place on a parallel world filled with superhumans. Allegiances are formed between heroes and villains. (Source: MAL)
Every 333 years, an abomination is born, a being known as Kuiba, destined to be the nemesis of all, and bring disaster to the world. In Kuiba year 1664, the sixth-generation Kuiba appeared. After narrowly escaping a preemptive strike by the forces of heaven, the young Kuiba was adopted by Man Xiaoman of the Beast Nation, who gave him the name "Manji." Like those around him, Manji is unaware of his true identity. With the encouragement of his adopted father, Manji overcame numerous trials before...
Every 333 years the ultimate universal devil known as "Kuiba" is reborn. With each rebirth, Kuiba brings absolute destruction. In order to battle Kuiba, Deities and people team up and assassinate him just before his revival. In 1664, the year of Kuiba's rebirth, the assassination attempt failed. Kuiba managed to slip into the young body of Manji. As the child grew older, Manji grew a strong desire to become the greatest warrior. When Manji hears the armies of Earth are recruiting to battle...