If you ask Yang Yiyi, has she ever regretted coming to Shenjiang University and meeting Shen Yanxi? She may never give you an answer, but when she ran barefoot on the tree-lined avenue of the school, the silver night rain reflected the dark black school badge engraved on the wall not far away with a pale and shocking light. She was grateful in her heart, grateful for the happiness and pain that life had given her. In the dark night when lightning tore through the sky, she recalled the bachelor's hat thrown into the air in the sunshine on the day of her undergraduate graduation and the albizia flowers that fell on the pink collar of her bachelor's uniform. She hugged and cheered with her friends and graduated. She was like a butterfly soaked in dew, shivering in the rain-washed campus. She could not imagine a warmer time than that day.