Meng Zhu has a godfather, an uncle, and an uncle.
It's just that these three relatives have no blood relationship with her. Her mother has a very good relationship with these three people, so good that these people are willing to sacrifice their family's interests to subsidize the Meng family's mother and daughter.
Therefore, when one of Meng Zhu's "uncles" died in a car accident, his son Xu Zhen found Meng Zhu's home and recognized Meng Zhu's mother, Meng Xinxin, as his aunt, and Xu Zhen became Meng Zhu's brother.
Purpose: Cherish time