Cheng Xiao knew that Moya was afraid of outsiders being nice to her, knew her favorite color, knew that she longed for freedom the most, knew that she hated being controlled, and knew that Moya was a goddess that he could not reach in his life, but he didn't know that Moya only cared about him.
Moya knows Cheng Xiao's family, his misfortune, his kindness, that he is very kind to her, and that he can always be happy, but she doesn't know that he is happy because he wants her to be happy.
They both know that each other cares about each other, but they don't know that love is about letting each other know——