I can't understand the ending of the movie Shadow.

The ending of Shadow is an open ending, which is left for the audience to imagine.

Three possible outcomes

After the shadow went out, he told the priest the truth. Tian Zhan and Minister * * * made their son Yu the new king. Seeing everyone kneeling, she found that the country had completed the transformation of his personality and became the new son Yu. Before Xiao Ai's pity for him had vanished, and the shadow returned the sachet to her, indicating that he still wanted to possess her, but she could not change anything.

Second, after the shadow went out, she told the minister the truth. As a result, she was killed by Tian Zhan, who was king. Because at the end of the story, only Xiao Ai and Tian Zhan know the true identity of Yu Zi, and the shadow is not Yu Zi. In order to survive, Xiao Ai was afraid to go out.

Third, after Shadow went out, she told the ministers that she really wanted to be killed by Tian Zhan, who told all the ministers that she was the real Pei Wang. The former Pei Wang was only his own shadow. You can see from three points that he is the real king. First of all, Pei Wang shot Tian Zhan in the hall, and Tian Zhan was very calm. Pei Wang was close, so he missed. He didn't do anything wrong, but he didn't dare to shoot. Finally, Tian Zhan himself inserted an arrow. Second, in the face of the attitude of the two when the princess died, Tian Zhan was heartbroken, while Pei Wang was very calm; The third is to find Yu Zi's hiding place. It is said that Pei Wang doesn't know Yu Zi's hiding place. Only Tian Zhan and Ying He know the hiding place. Shadow and Xiao Ai won't tell anyone, because then they will be killed. This can only be a field battle. Why did Pei Wang finally know? Because they were real kings in the field, he told Pei Wang where Yu Zi was hiding, and Pei Wang sent someone to kill Yu Zi.