Once upon a time, in the solar system, there was a creature named Purple horn Unicorn who lived on Jupiter. He was arrogant and a conceited unicorn. He depended on his powerful energy and he wanted to rule the Sun and rearrange the Solar System. He also planned to destroy the moon that would make the world have nights so it would always be daylight.	When the Fairy who lived on the Moon heard about this bad news, she was worried about that. She asked the dragon who lived in the North Seas to protect the safety of the moon. The dragon agreed with her, because they all were very angry about the unicorn. If he rearranged the Solar System, he would destroy the whole world..
So the dragon asked his neighbor Yi, who lived in Taiwan Island, to go and fight with the unicorn. Although the dragon had power on earth, his power was of no use in the universe. He only had a treasure "Yin and Yang peal" Unfortunately the dragon did not know how to use this treasure.	The dragon and unicorn met each other on Mars and began to fight. Actually, the dragon's power couldn't compete with the unicorn and besides Yi was just a little boy. The Unicorn looked down and them and became more and more arrogant. Finally he wanted to kill these poor guys.