One time the troupe's principal comic actress was sick, and Sun volunteered to stand in, because the role offered more opportunity for her to develop than in the standard "young female" roles.
剛開始從沒有台詞的野獸，到一句台詞就下台的太監、婢女，接著演老生、小旦。有一回，劇團的三八旦生病了，她努力爭取。因為三八旦要比小旦有更多發揮的空間。