轻狂芳馨
[qīng kuáng fāng xīn]
In Chinese, these two characters often symbolize a young girl's gentle beauty and sweet personality (芳 means fragrant while 馨 refers to the far-reaching fragrance). 轻狂 here may indicate lively and unrestrained, so altogether this username paints the picture of a vibrant yet delicate feminine presence filled with youthful charm. This could refer either to the qualities someone admires in themselves or in another.