Luo Fan went home with the pain of broken love. He happened to meet his newly moved neighbor Lin Xianer in the elevator, and the two had a little conflict. At this time, Lin Xianer saw a woman carrying a nine-month-old baby girl named Yubao to Luo Fan's house. It turned out that this woman was Luo Fan's sister. Her husband was involved in a smuggling case while on a business trip in the Middle East and was detained by the local police. She had to rush over to help her husband get rid of the suspicion, so she begged Luo Fan to keep Yubao for seven days. Luo Fan had no choice but to accept this difficult task. After Hongying left, Yubao kept crying. Luo Fan, who had no experience in taking care of children, was panicked and didn't know what to do. . .