The friendship that once seemed indestructible turned out to be so vulnerable in the face of love. A boy made two best friends who had talked about everything completely turn against each other, and even became strangers and even enemies. When Gu Xiansi suffered a double betrayal of friendship and love, her good friend Yi Sheng became the only ray of light in her world, illuminating for her wherever she wanted to go. The "520 Love Letter" written to the boy whom I loved deeply in my youth was secretly hidden, mentioned, buried, and finally forgotten in the depths of memory...
