我不是你王子我只是你骑士
[wŏ bù shì nĭ wáng zi wŏ zhĭ shì nĭ qí shì]
This translates to 'I am not your prince, I'm just your knight.' It suggests that while the person may not be the ultimate desire or romantic interest ('prince'), they are committed and protective, serving as a reliable supporter or friend ('knight').