The world only knows that Qiao Xuan has a daughter named Da Qiao, who is smart, beautiful and generous. They also know that Da Qiao has a silly sister who is not popular with others. That person is me... Yes, I am very stupid. When I was very young, once, my sister and I went to the sea together. While playing, the water rose and my sister and I fell into the sea. My mother, yes, my mother, jumped in to save Da Qiao without hesitation. But I could only look at my mother's increasingly blurred back in despair. Who could come to save me? Who would come to save me? I am redundant. . . . I shouldn't be alive at all... I feel like I am slowly and feebly being swallowed by the sea water. I vaguely feel like someone saved me and told myself, you don't belong here, can I walk with you from now on?