Cold season. Vast areas of snow crumbled and fell from the mountains, and a large avalanche covered almost three-quarters of the valley floor, and many people were buried under the snow and had little survival. Birdman led the children to the south to play with the Tokhtar tribe and survived.

The entire Tokhtar tribe was also spared, and the avalanche commotion attracted Tokhtar's attention.

There are also people in this world who live a primitive life, in the dry season they are naked and only cover their shame with leaves, and in the cold season they wear leather clothes made of pigskin and leaves. They were all savage Tokhtar tribesmen, and when they saw the birdmen and children trespassing, all the barbarians surrounded them with spears.

The birdmen told the children to be obedient, and they were taken away by the barbarians without resistance. After that, the barbarians locked them in the pigsty and waved their spears to warn them not to wander.

From that moment on, the world changed its brutal silhouette in the face of disaster. Almost all of them died, buried in a white hell. The surviving herds of pigs, with their mouths open and their fangs bared, forage for food in the snow. Clumsy movements quickly consume the fat stored in their own bodies, and they have to eat at any time. Even dead people and pigs will eat it.

Barbarians go to snow-buried villages to plunder everything that is valuable to them. They capture live pigs and take away dead pigs. They also took away a steam machine, which was so heavy that four flapping dogs struggled to pull it off the ground, and then laid planks underneath it and carried it by gliding.

The machine was carried to the barbarian tribe, and the women, children, and old people all came to watch, they did not know much about this novelty, and the complex and strange structure of the machine aroused their interest, and the barbarian stabbed the shell of the machine with his spear, and the shell was quite strong. A mischievous little boy picked up a big rock and threw it down, and later the children used the steam engine as a toy.

In the pigsty is a cage in which a group of adults, survivors of the snowstorm, are shaking their rusty pillars with their hands. shouted angrily to show displeasure with the barbarians.

The Birdmen learned the inside story, and it turned out that the leader of the barbarian tribe, Tokhtar, decided to take advantage of this disaster to rule the world, and both villages were covered in heavy snow. Without rescue, the thick snow could not be cleared. Those buried deep in the snow can only sleep in the ground. If there are survivors, it is a very small minority. The barbarian tribes were completely unthreatened by this catastrophe, and they stockpiled enough food, as well as the pigs that were plundered. They intend to rule the world completely and enslave the survivors of other villages.

The Birdman instructed a child to sneak into the other pigsty in the dead of night, telling the other survivors to be patient and wait for the right opportunity for the enemy to paralyze their carelessness before joining forces to resist.

So the survivors served the barbarians honestly, and during the day the pigs lay in the pigsty, and the survivors did the dirty and tiring work like slaves, and then ate with the pigs at night. The barbarians always threw the food of their slaves into the pigsty every day as if they were raising livestock. In order to reserve their strength, the birdman led the children to eat the food honestly.

On a night when the children and the pigs are asleep, unexpected happiness befalls the birdman. The Birdman saw a savage woman. The savage woman also saw the birdman, and she threw a wink at the birdman, and the birdman shuddered. Then the savage woman went into the pigsty, and she stretched out her hand to caress the man who had impressed him, and with the other hand she tenderly stuffed the leaves and grass into the birdman's mouth, and the birdman said to the savage woman, "I am not an animal, I do not want to eat grass and leaves, I want to eat what men eat." The savage woman patted the birdman's hair with her hand, and then walked away indifferently. After a while, she brought back a rope and tied it firmly around the birdman's neck, and she dragged the birdman hard, and the birdman walked away with the savage woman. Outside the pigsty, the savage woman lay down on her back, and the wind lifted the leaves on her body, giving the birdman an unobstructed view, blood boiling, and uncontrollable...... In this way, the ambiguity of the birdman and the savage woman takes place under the wisps of smoke and confusion in the valley. It was a long time before the savage woman limped to her feet, and the two men were still separated from each other. That night, the birdman had food and a savage woman.

In the cage of another pigsty, the old glans, the dwarf, the little ghost, and a few tender men were also locked together. They are all survivors of the snowstorm. But their lives were not easy, they ate what the pigs ate, and they had to work for the barbarians during the day, so the survivors discussed together how to deal with the barbarians.

Later, the men in the pigsty obtained women's rights in order to live a good life. In the depths of the night, they secretly took sticks tied to stones, and crept into the hut of the leader of the barbarian tribe, killed Tokhtar, and hung Tokhtar's head on the roof of the hut, and the men joined forces to kill the men they thought were strong, and the boys were all killed, and only the women were bound by them. This was all agreed upon by the men in advance. Originally, the tribe consisted of only thirty grass huts, so in one night, after a difficult battle with a few strong men, all the men in the tribe died. Most of the deaths were with sticks and stones on the head, and most of the dead were stoned beyond recognition.

For a long time, the savage women were kept in a small grass hut and guarded by special people. The wise men were polite, and they invited the women to eat pork with them, so as to nourish the thin bodies caused by the scarcity of the cold season. It is only in the evening that the men bring their favorite savage woman back to the hut. Some disobedient savage women will also be treated kindly. Later, savage women began to fall in love with men, and gave birth to men's children in their wombs, and men could not do without these women to cook their lives and cook food for them. In this way, the savage women who survived were released and learned the language of communication. They lived together. The women learned to be shy, and began to put on clothes sewn from pigskin to shuttle through the misty morning. It is only at night that they show their naked bodies to their men. The men were unscrupulous, picking a wild fruit from the tree and squatting in the grass to while eating, and when they saw a woman approaching, they dragged it into the grass and made a heart-wrenching sound...... In this way, the surviving men regained their happiness and freedom in this world.

But there is one man who thinks that the disaster will continue and that he must explore the new world. Uncle Cowdung had this thought, and even though the cow had left him, he made a thick rope out of silk grass, and he had the strongest of men throw him up the cliff, tighten the rope, and begin to climb.

Uncle Cow Dung carried a big load of food. Halfway up the mountain, a stone sliding from the rock wall hit him, and he fell halfway up the mountain.

That day, the men were scattering seeds of fruits and vegetables in the ground. Hearing only a dull sound of "pop", people looked in surprise at the place where the sound was transmitted, and there was a man crawling on the ground, screaming like a pig, and people found that it was their old village chief, Uncle Cow Dung.

Uncle Cow Dung survived, but with both legs crippled, and he sat in a wooden wheelchair cart left behind by the snail. Every day there is a fat woman who quietly pushes the quiet him around the canyon. The fat woman fell in love with Uncle Cow Dung at first sight, and she said that she was willing to give everything for Uncle Cow Dung.

At that time, most savage women were willing to live with these tender men. One of the fat women also fell in love with Uncle Cow Dung. But there are still a few men who are not loved by the remaining savage women.

For this reason, Uncle Cow Dung put forward the idea of free love, and when it comes to love, the birdman is the beneficiary of the idea of love.