After the catastrophe, the Chinese calendar became the universal calendar for human beings in the Black Iron Age. Each year, when the Faerie-Dragon Star rose up from the east, a new year would start which also symbolized the beginning of the spring festival.

Accordingly, the day before the Faerie-Dragon Star rose up, namely December 31st each year, it would be New Years's Eve, namely the Xi Elimination Day.

"Xi" was a monster that could destroy human beings in the legends. It was said that on that very day, numerous brave Chinese forefathers pulled out of their swords with the exciting will to fight along drumbeats of war to face the "Xi" and finally killed it. Therefore, from that day on, beating a drum became a Chinese tradition.

Previously when he was in Blackhot City, Zhang Tie would always have a great fun in beating a drum on the Xi Elimination Day. On that very day, the Zhang family would always set a beating drum in the house, allowing Zhang Tie great fun all day long.

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