What was the past of the full moon at the Druna Hotel?

The past of the full moon in Druna Hotel;

In Zen Star's dream, there is a wilderness with the moon in the sky, full of musical instruments and full moon laughter, and she is surrounded by Qingming and Yan Yu.

The full moon looks happy. But the relationship between the three people was not very happy from the beginning. Because full moon and Qingming are the leaders of a group of thieves and a guard soldier in Yongzhou City, when they first met, they tried to take each other hostage.

I am curious about why the full moon and Yu Yan are accompanied by Qingming, why the full moon is left alone, and how to find the Moon Inn where the souls of the deceased can rest in peace.

Tv drama evaluation:

The special effects and CG production of the play are excellent. The Druna Hotel at night is comparable to the dreamy Disney fairy tale castle, and its internal structure is even more magical. There are sunny beaches, air bars on the 100 floor, and even the houses of residents are personalized.

There are many small foreshadowing in the play, and the details show the intention of the crew. The description and portrayal of human nature sublimates the theme of the play and points to the mainstream values of "good is rewarded with good, evil with evil". The most attractive part of this play is to break away from convention and create an artificial sense of contrast. The contradiction and tension in the corner of the heroine Zhang Manyue is very interesting.