12yearoldShin,lovesherbike,whichshecallsBillyBuckwheat,herimaginaryhorse.Mostofherlife,thegirlidentifieslittlewiththeasianpartofheruntilshediscovershergrandmother'soperaalbum.ThiscementsthebondbetweenShinandhergrandmotherwhobegintohaveclandestineoperapractices.Insodoing,ShinrevivesherNan'sdreamofbeinganoperastar.However,intheend,therealtruthisrevealed.