Skeleton Lizard that can smile!
Chen Yuan and Mo Mingzhu followed after them. When she saw that, Mao Yue cursed them as idiots who didn't fear death. She was the most disappointed with Mo Mingzhu. Chen Yuan wasn't too important to her. She had somewhat of a plastic friendship with him. Their relationship only existed because of Mo Mingzhu, who was obviously Mao Yue's childhood friend and also the person she most cared about in her life.
The part about her caring for her was the whitest truth.
Mao Yue was a member of the shadow clan that had almost entirely perished.
Her actual form was a blob of darkness.
The unique thing about her and her clan was that they could change themselves to look like humans.
While growing and living as one, they would start looking like the person they most cared about and whether they showed it or not was another matter.