黑夜的离别背影的再见
[hēi yè de lí bié bèi yĭng de zài jiàn]
It means 'Goodbye by the back view in night's leave taking'. The net name depicts the poignant moment of parting ways with someone at night. The use of 'back view' gives a sense of melancholy as one watches another walk away, symbolizing farewell.