Xicheng is a snow queen who doesn't know what happiness or joy is, and Lingxing is a sunshine who happened to come into her life. "Secret Dance" is the story of two high school classmates, with a sweet and warm romance and detailed emotional descriptions. This is a short bonus story about a sidecouple from Unwavering Love, and the events that take place one year before Symbiotic Love. However, the story can be read on its own.