Yi Rou told her father, Chi Xun, about her desire to accept Qin Sisi as a foster daughter, and Chi Xun was overjoyed almost to the point of disbelief.
Qin Sisi and Ye You are already engaged, and she will be the Queen of the Demon Sacred Realm in the future. Being the family of the Queen is a privilege that is hard to attain even after several lifetimes.
The Qing Ming Family produced two queens, and the entire family's ego is soaring.
Despite the excitement, Chi Xun is very clear-headed. A foster daughter is still not the same as a daughter; only having a shared foundation of interests and goals can form a strong alliance.
Qin Sisi is Ye You's fiancée and will naturally be loyal to him. The Mei Lan Family has firmly chosen Ye You over Tian Xiaozi, supporting him to become the Sage Ruler, which is their current mutual goal.