What is the relationship between Haruko and Erkang?

In Princess Pearl, Er Kang is Sang Ni's old love, and they almost got married. Sunny is the daughter of Prince Yu. She has been waiting beside Lafayette. He is also Gege, known as Qinggege. Because I had a heart-to-heart meeting with Erkang on a snowy night, I was attracted by Erkang's talent, and then I took the initiative to let Lafayette marry her, but Erkang had already liked Wei Zi, and then she let it go.

When Sunny asked the Queen Mother to cancel her finger marriage with Erkang, Sunny was moved by emotion and reason. She is really an open-minded and kind girl, and she finally found someone she loves.

Qing Er can be said to be Bai Yueguang in the play. Although she is not familiar with Wei Zi and Swallows, she is willing to help them after knowing that they are in danger. It is precisely because of Sunny that Wei Zi was embarrassed and jealous with Erkang. However, Erkang and Sunny are also predestined friends. Because of the appearance of Wei Zi, their feelings have not developed.

However, Sunshine later met Swallow's brother Xiao Jian, and Sunshine was willing to give up his status as a princess for love. Later, Sang Ni and Xiao Jian went far away to the end of the world and became a civilian couple, living in seclusion in Dali. Their feelings are also very touching.