The original background name, gender, and even all the memories from birth to time travel are not important. These things have long been lost in the long experience of the big monster. Even if they are not forgotten, there is no need to mention them again.
All we need to know is that she is Qing Xingdeng now.
＊
What I imagined a long time ago is just the skin (appearance) of Onmyoji characters, and the actual setting is mainly based on my imagination :)
Purpose: Recording of footprints