This was a classic novel called " Natsuki Xixia: Changing Identity ". After the female lead Xiamu Xixia gave birth to two children, the male lead Duan Yu carried one of them away. However, for some reason, the two children suddenly swapped identities when they were five years old and became people from completely different worlds. In this world, the female protagonist became an innocent and cute girl while the male protagonist became a ruthless gang leader. The two children had to face each other's identity and personality differences and gradually adapt to their new identities. As the story developed, the two children gradually developed feelings for each other, but they also faced many challenges and difficulties, and they had to overcome various obstacles to be together. Will they finally be able to adapt to each other's identities and find their own happiness?