万人艳羡为“旦”，芸芸众生为“丑”。戏台演绎的万千人生，跳不过这方寸之间。一时“旦”、一时“丑”，最终也不过是殊途同归。 片中“旦”存在的街边广告牌两侧的文字也可看作主题的暗示：处世莫争先，丑末犹有尽欢处；为人须顾后，上台又有下台时。 All people love and envy "beauty" and the mortal beings are "ugly." The thousands of lives performed on the small stage. A moment of "beauty" and a moment of "ugly" will ultimately be the same. The words on both sides of the street billboards in the animation can also be regarded as the theme. Don’t be inferior, the ugly end is still full of joy; Don't be arrogance, the beauty can't last forever.