Our lovely planet Wow Wala became devastated due to earthquakes and floods in early 2000, and a new round of Ice Age also followed. In the blink of an eye, the year 3000 AD has quietly arrived. At this time, human beings have evolved to the ultimate form of life, and the average age of human beings has reached 150 years, nearly twice as long as before. Big heads and pointed jaws are the most basic characteristics of people in this period, and their bodies reach an average height of about 2 meters. Some mental illnesses caused by loss and loss can also be cured under the treatment of new machines, and other illnesses are no longer a problem. Due to the extension of life and the development of the medical system, there are more and more people on the planet Wow. At this time, the population has reached 20 billion, of which whites and blacks account for three-quarters, while yellows and other skin colors only account for a pitiful quarter. The political system of each country remains unchanged, as the saying goes, adapting to changes by remaining unchanged. The only thing that has changed is the harsh climate environment and the ups and downs of the world economy. People's adaptability is very strong. Although it is not as good as Xiaoqiang (cockroach), it is just that if the weather is colder, it will be no problem if you wear more clothes. Therefore, you will see all kinds of "fat people" on the street, so losing weight is not necessary during this period. It may be because of "carrying weight every day", and people's bodies are very strong. The story of Tai Er, the protagonist of this book, also begins in this Ice Age.