Secret love and simple love stories. He was in his prime when he smiled. The novel takes Unrequited Love as the main line and tells the story of unrequited love, youth, growth, dream and simple love. It is also a story that can deeply touch the inner feelings. The author describes the psychological motivation and behavior of this novel in unrequited love. The author of "When He Laughs, It's the prime of life" is Shu Yuan, female, born in 1994, who lives in Xi 'an, quiet by nature, good at unrequited love, vivid and delicate words, and deeply loved by readers. "Shu Yuan" is a romantic novelist. He likes fantasy, imagining the beauty of love, and turning his own words into articles. Every word has gentle power to convey the true meaning of love.