奈何桥边待君归
[nài hé qiáo biān dài jūn guī]
This username translates to 'Waiting for You at the Bridge of Helplessness.' In Chinese folklore, the 'Nai He Bridge' or 'Bridge of Helplessness' is where spirits must pass to enter the afterlife. The name expresses a deep longing for someone's return from separation or even death.