As for how King Kang Zhao Gou fared, the history here does not record it, he just vanished without a trace, but everyone guesses that he was definitely killed.
However, the Great Qian Dynasty did not develop well. Zhao Cheng's reign lasted only fifteen years. After his death, his son, who was incompetent, indulged in frivolity rather than affairs of state, quickly caused dissatisfaction, and it was said that he was poisoned to death by a beauty in the harem after only an eight-year reign. In other words, the Great Qian Dynasty lasted only two generations and existed for a mere twenty-three years before it perished.
Gu Qingheng couldn't help but laugh when he mentioned this dynasty; it seemed somewhat like a joke.