In a world unknown to humans, the 12 constellations have been silently guarding the balance of the universe.
The owners of the 12 constellations have a mission, to obey Zeus's instructions and protect the universe for Zeus. Zeus will not come back until people believe in God.
However, due to the development of science and technology, humans have long forgotten God.
The owners of the 12 constellations were very sad when they saw this, because although they have the power of immortality, their magic cannot protect the universe forever.
Finally one day, a meteorite broke the fragile magic power of the owners of the 12 constellations, the universe began to lose its balance, and the monsters began to get excited.
Due to the invasion of monsters, the 12 constellations were broken into star stones. As a result, the 12 owners fell into the human world and experienced life, old age, illness and death...