The relationship between Zi Ying and Yanfei.

It's okay. In the novel "Ghost Blows the Lamp", Eiko and Swallow are both platitudes, so it doesn't matter. The Ghost Blows the Lamp is a series of novels written by Muye Zhang. Ghost Blowing Lantern was first serialized in Tianya Forum in 2006, and was later copyrighted by Starting Point. In September of the same year, Ghost Blowing Lights was published as a book.