The Demon Queen chose to leave the Mortal World and pick up her husband after seeing her children. She is sent out by Hei Anjing, Xie Jieye, and others. Even the Yun Clan came to meet her because she is still Chun Hongyun-Jun's mother.
Even though Yun Huaxia and Yun Xiajie were full siblings, they were nonetheless living as mortals at the moment. Ye Xiajie's biological mother in this world was the Demon Queen, who at one point in time was the Goddess of Love as the King of Demons refers to himself as his father.
They were able to accept the Demon Queen more readily when Yun was told about her situation since they understood where she had come from.
The Demon Queen says, "To the Yun Clan, please take good care of my children. If I have time I will go drop by again."
"Yes, your highness!" responded the Yun Clan.