We solved the case. Dany revealed in the variety show "Love's Learning Journey" that she had been cheated by her best friend. She said that she listened to her friend's remarks and signed a blank sheet of paper, which led to all her savings being cheated, and she has not apologized so far. After the program was broadcast, netizens revealed the true identity of this "good girlfriend" through the referee document network. Her name was Tian Xiaomi (formerly known as Tian Mi), so Dani solved the case.