Beiyi used a strategy to attack Baicheng, an important town in the northern border of Daqi Kingdom. Tang Yao, the guard of Baicheng, led his people to resist desperately, but they were outnumbered, and all sacrificed. Only the second daughter, Tang Ying, survived. What makes Tang Ying even more indignant is that his father sacrificed his life for the country, but in return he was charged with collaborating with the e...