皆用青丝
[jiē yòng qīng sī]
This username translates to 'All Tied With Black Hair', which may symbolize youth, vitality, and elegance. '青丝' specifically refers to black hair strands, traditionally seen as youthful and pure in Chinese culture. '皆用' implies everyone or everything shares this feature, perhaps hinting that youthfulness and purity are timeless and universal.