A restaurant, two worlds of yin and yang, three sides of the human heart, four sides of the Chu song. I, Tang San, opened a restaurant at No. 9 Tian Yi Street, the restaurant name is a bit odd, called Yin and Yang Restaurant. Restaurant opening day, I finally learned a truth, a hard to accept the truth: above the land of China, there is so a group of alien people have been walking among us!