"Wind Fireflies Moon" was one of Luo Tianyi's demo songs and it was featured in her first album, SingSingSing. The remastered version was uploaded to bilibili on May 30, 2013.
The song was based on a Chinese myth that told the story of the dragon god who visited the earth one summer night and disguised himself as a teenage boy (Yuezheng Longya). He encounters a girl (Luo Tianyi) in the forest and they played together, while the fireflies flew under the moonlight and they fell in love. However, the god was not supposed to have feelings for the girl and must leave her. They exchanged vetches as proof of their meeting and love: the god giving her a shiny one, since he was a magic being, while hers was dull, since she was a human. He turned into a dragon and flew her home, and stayed with her through the rest of the night. The next morning, he disappeared, leaving the girl alone. She woke and felt that their meeting was a dream, however, she still had the vetch he gave her, thus proving otherwise.