青衫如故白衫如初

This nickname conveys a sense of nostalgia and unwavering purity. '青衫' (Qingshan) can refer to traditional Chinese clothing worn by scholars or intellectuals, implying cultural refinement and classical charm. '如故' suggests that this characteristic remains unchanged despite time and circumstances. '白衫如初' further enhances the sentiment, with 'white robe as if from the beginning,' symbolizing enduring simplicity and integrity.