It was not until they learned her true identity that they felt a sudden realization.
…
The farce ended, and the banquet began. From beginning to end, Yan Zilei seemed unsurprised, perhaps he had sensed from the start that Mu Lin was nothing like the surface suggests.
Such skill, such an identity, and such medical skill. She was a woman shrouded in mystery. Any event that could occur to her could be seen as part of the ordinary.
The Charity Banquet functioned much like an auction, except the items being auctioned were donations from the various families present. The money made from the auction would naturally go towards charity.
This was previously explained by Jing Chen and Mu Lin.
As each item was auctioned off, the auctioneer would announce the name of the donor. The first item to be auctioned was Mu Lin's Night Pearl. It seemed Yan Zilei wanted to start off on the right foot.