一生一座城只身等一人
[yī shēng yī zuò chéng zhĭ shēn dĕng yī rén]
This online name 'One Life, One City, Alone Waiting for One Person' expresses a deep sentiment. It speaks of a lifelong devotion and loyalty toward one person, indicating the user's steadfast feelings or desire to wait patiently and solely for someone important in their life.