我不是公主穿不了水晶鞋
[wŏ bù shì gōng zhŭ chuān bù le shuĭ jīng xié]
Loosely translating as 'I'm Not a Princess, Can’t Wear Crystal Shoes', it alludes to a Cinderella-like fairy tale and means not leading a fairy-tale lifestyle despite dreams or attempts at doing so.