What genre does the text The Origin of the Year belong to?

The Spring Festival is the biggest and most lively traditional festival in China. "Spring Festival" is also called "Year". So, do you know the origin of "Year"?

Legend has it that in ancient times there was a monster called Nian, with sharp horns on his head, which looked terrible and his sexual impulse was extremely fierce. It lived in the depths of the sea for many years. Every New Year's Eve, it crawls ashore, devours livestock and endangers people's lives. In order to avoid (b) "Year", every year on the 30th of the twelfth lunar month, people take care of the old and the young, lead animals, drive chickens and ducks, hide in the mountains and come back the next day.

One year on New Year's Eve, the villagers were busy packing and preparing to flee to the deep mountains. At this time, an old man with a white beard came, with crutches (ZH incarnation), hale and hearty spirits (juéShuo) and extraordinary appearance (fán). He came to the old woman's house at the east end of the village. The kind old woman gave him some food and advised him to go up the mountain with everyone to avoid Nian. The old man with white beard waved his hand and said, "I'm not afraid of New Year. If you let me stay here for one night, I will definitely kick it out. " There was no way, so the old woman had to leave him and take refuge in the mountains herself.

In the middle of the night, "Nian" Yao (Yao) Wu (W incarnation) swaggered into the village. When he went to the old woman's house, he found red paper on the door panel and all the lights in the room were on. It trembled with fear. Suddenly, there was a scratching noise in the yard, which scared it back several steps. At this moment, the door opened and the old man with white beard came out wearing a red robe with a smile. Nian was frightened and Juan ran away.

The next day, when people came back from the depths of the mountains, they were very surprised to find that the village was safe and sound. They crowded into the old woman's house together and asked the old man noisily what magic he used to drive Nian away. The old man smiled and said, "I didn't use any magic either." I realized that Nian was most afraid of red, light and noise, so I posted red paper on the door, lit a red candle in the room and wore a scarlet robe. When I came, I fired a whip (biān) gun and scared Nian away. You will drive it away in the same way in the future. "

Since then, every year on New Year's Eve, every family sticks red couplets, sets off firecrackers (bags), and stays indoors all night (xρ), and the whole family gets together to keep watch. This custom spread more and more widely, and finally formed the most solemn traditional festival "Chinese New Year" in China.