"Kōng Dài" is an original Chinese song featuring Luo Tianyi and Wang Chao, a human vocalist. The story takes place in ancient times when a scholar fell in love with the daughter of a wealthy family. The family opposed of this love and therefore, the couple was separated. They agreed to meet again in ten years and the scholar left behind a fan with his inscription on it. This song has exceeded 100,000 views on bilibili.