When we first met, Nan Huan smiled brightly and fell in love with her. She was at the age when flowers were in full bloom. She had good looks, sweet dimples, and a particularly good-looking smile. She was harmless to humans and animals, and had excellent grades. She was a well-behaved and good student in school. But she fell in love with Xu Jingchen who didn't like her.
Xu Jingchen is Nan Huan's obstacle, a drug that Nan Huan can't get rid of in his life.