One day, when Qingti was not yet called Qingti, she said, "Monk, if I turn into a human form one day, what name should I give?"
He thought for a long time and finally answered her, "Qingti."
Her eyebrows were filled with joy, "Well then, my name will be Bai Qingti."
"Why add an extra white?"
"This is my sister's last name, I will always take her name!"
"No need. Just call me Qingti."
You don't have to take anyone else's last name.