Hua Chenyu and Su Shiting are just ordinary friends.
they are mentors and students in the first season of the battle of nature. In the first season, Hua Chenyu played as a mentor, and Juno was a student. In the final finals, Hua Chenyu, as Juno's singing partner, helped Juno, and finally helped Su Shishi sit on the champion's throne. They were just ordinary friends.
Before that, Juno was an amateur, and Hua Chenyu didn't know each other. They only knew each other after the battle of nature was broadcast, and perhaps because of Juno's superb singing skills and style, Hua Chenyu was very attracted. He especially liked such a talented girl with good singing skills.
And they have their own personality, musical style and musical characteristics, which makes Hua Chenyu very happy, so they can only be said to be a kind of Bole and Maxima. It can be said that it is a relationship of mutual appreciation.
Besides, Juno is married now, and Hua Chenyu is unmarried so far, so they are just ordinary friends now, and there is nothing else.