Once upon a time, the Jade Emperor prepared to select twelve animals to be recognized as the zodiac (生肖shēngxiāo) signs. In accordance with the decree, the first twelve animals to arrive on the appointed day would be selected as the animals of the zodiac. The cat asked the mouse to help it sign up, but the mouse forgot and the cat wasn’t chosen. Ever since, the cat and mouse have been enemies. Other animals wanted to choose the ox for the first place. When the ox walked into the hall, the mouse rode upon his back and was seen first. So then, the mouse took the first place in the zodiac. The tiger and dragon didn’t accept the decision, but were granted as kings of the mountain and sea in retribution. Next, the rabbit didn’t accept the other positions and ran a race with the dragon to take the fourth spot. That’s how the dragon became the Fifth Animal in the Chinese Zodiac.