The Great Demon creates a hole in the heaven. This confuses the whole world and there is no difference between day and night. The bright sun harms the people. DAO PUN SIN begs the gods to save the people. The gods work together to mend the hole and overcome the problem.

The duel between the gods and the demons is approaching. The Great Demon finds that the gods have appointed DAO PUN SIN's son SIU YAT to represent them. He therefore makes DAO PUN SIN's wife having his child. He wants to spoil the formal relationship and wins the gods with this dirty trick.

PUN SIN's wife dies after giving birth to SIU YUET. The Great Demon appears and wants to take SIU YUET away. PUN SIN refuses and fights against. Before he dies, he manages to leek him up and buries him deep in the abyss. In chaos, SIU YAT and SIU YUET are lost.

Twenty years later, the SUN CHILD and the MOON CHILD go to buy daily necessities with WONDER GIRL.… ...