凉栀末栀
[liáng zhī mò zhī]
'凉'(liang) implies a sense of coolness or aloofness, while '栀'(zhi) might be taken from '栀子'(gardenia). So, this username suggests a personality that is cool like the fragrance of gardenias. '末枝' can be understood as 'a branch left behind,' symbolizing solitude and lingering beauty.