Translated into plain language, Feifei looks like a little cat and can dissolve worries. In witchcraft terms, this "relieving worries" can refer to mental troubles as well as physical illness, and among the spirits recorded in the Classic of Mountains and Seas, it's an extremely rare type.
Some film and TV dramas will turn Feifei into a chubby little bird. There was a time when Luo Jun was really into watching that kind of Fantasy drama, and Qin Huai watched a couple of episodes with him. Thinking back on it now, Qin Huai suspects Luo Jun didn't even like that show; he just wanted Qin Huai to see Feifei being turned into a chubby little bird.
