It's a Showdown and I Exchanged Souls with the Prince.

She helped him become a great treasure, but he was instigated by others, causing her whole family to die tragically. Gu Zhiqing lost all hope and died together with the Dog Emperor. Who would have expected that his souls would be exchanged and he would be reborn back to the time when he was the prince... She looked at him smiling sadly and cruelly. "Very well, in that case, can I return the things you did to me one by one now?" Only then did he realize that she had been so wronged before, and it turned out that he was really blind before! When the truth was revealed in front of him bit by bit, he...