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Introduction: Yu Changsheng, a modern person from Blue Star in the parallel universe. Because he was dissatisfied with reality, he was struck by lightning and traveled to the time when Emperor Xuanyuan Huang was just born (that is, around 2700 BC.) At the beginning, he received a large gift package from the system, and obtained ① immortality, ② one dollar per second, and ③ long-term sleep. So Yu Changsheng felt that the world was not very fun now and chose to sleep. I slept until the end of the Eastern Han Dynasty, 189 AD...