On January 5, Sun Yanzi's sister Sun Yanmei announced on Weibo that she had severed relations with her sister, which sparked heated discussions. 
Yanzi Sun's sister posted
Sister Yanzi Sun posted a photo of Yanzi Sun's sister posted that her relationship with her sister has been very weak since 2019, and she has been tired of trying to communicate with her in some way in the past three years. "Suffice it to say that I and so-and-so are no longer sisters. The full text is as follows: "The day before my birthday just wanted to say a few words to people who know me. Since 2019, my relationship with someone has been very weak, and I've been tired of trying to communicate with her in some way for the past three years. From today onwards, I just want to say that I have lived in the shadows for 20+ years, and it was not easy in the past, and now I just want to find a release from today. I'm not a celebrity, but I didn't seem to be a private person before, I just want to say that I and so-and-so are no longer sisters. I don't want to get involved in the discussion of fans and all kinds of speculation It's not easy for everyone. I just want to live my life in peace, the first half of my life is not easy, the second half of my life, please allow me to define myself in my own life. If I've been doing something wrong as a sister for 40 years, I apologize for that. For my hurt, whether intentionally or not, I also hope that one day the person who hurt me will be able to learn from it and find peace. Finally, I would like to express my gratitude to those who understand me. I wish each of you a true sense of being true to yourself this year, and I wish you a full and happy life. ”
Previously, Yanzi Sun's sister had posted many times to express her dissatisfaction, and she was suspected of having a long-standing grudge with her sister Yanzi Sun. 
According to public information, Sun Yanmei was born in 1984 and is the younger sister of the famous singer Sun Yanzi, and the two sisters are very similar in appearance. Previously, Yanzi Sun posted photos of her sisters many times to share small stories, and the last time she publicly mentioned her sister was in January 2019. 
In response to her sister's article on severing relations, Stefanie Sun did not respond publicly before the publication.