萌妹纸女汉纸
[méng mèi zhĭ nǚ hàn zhĭ]
This username combines the concepts of 'cute girl' (萌妹纸, where 萌 means cute) and 'female tough character' (女汉纸, where 女 means female and 汉纸 is a playful phonetic replacement for 'guy'). This suggests that the person might be both cute and independent.