During the Tang Dynasty, Gaozong Li Zhi suddenly suffered from a head disease, unable to see, and difficult to manage government affairs, and Empress Wu Zetian took the opportunity to gradually control the government.

In the same year, the crown prince Li Hong suddenly fell ill, and the medicine stone was ineffective, and the selection of the new prince became the focus of controversy in the court for a while.

Li Xian, the king of Zhou, was the third son born to Li Zhi and Empress Wu, who knew how to be able to be polite and ambitious, and was deeply loved by Li Zhi and the old ministers.

But Li Xian also has an elder brother, Li Xian, the king of Lu. For this reason, a group of upstarts led by Li Yifu and Xu Jingzong, under the instruction of Wu Zetian, asked Li Xian, the king of Lilu, to be the crown prince.

The two sides disagreed and it was difficult to reach a conclusion for a while, and at this time, the opinion of Prime Minister Di Renjie, a key person, became the key to the final word.

Li Xian, the king of Lu, has a cowardly personality, and Di Renjie is afraid: The loss of power of the Li family and the power of the Empress Wu will cause chaos in the world, so Li Xian, the king of Zhou, is resolutely recommended. The two sides were deadlocked, and the crown prince Li Hong was not dead, so the matter was put on hold.

But it didn't end there...... The battle between temples and halls is surging, and the fighting in the rivers and lakes caused by this is even more bloody.