Heavenly Chronicles (1990)

Original title: 天上編宇宙皇子

Delving into the humans' spiritual journey to the Celestial Realm of Buddha, Heavenly Chronicles follows five friends on their quest to bring peace to a corrupt and chaotic Earth. Born with a horn, Utsu no Miko found refuge on Mt. Kongo where he studies to become a God. But when the ruling imperial government seems to bring only devastation to the people, Miko and his friends venture on a 33-year quest to reach the Celestial Realm and meet the almighty Father of the North Star. Yet, the way is filled with danger, for the five humans intrude upon the world of immortals where the gods reign supreme. And, in order to reach their goal, Miko must first challenge them to battle.