Descendants of the Sun was a popular Korean sci-fi romance drama. It mainly told the romantic story of a special unit composed of soldiers and doctors in the early 21st century, dealing with emergencies and protecting national security with a female doctor. From the plot, it could be seen that this TV series conveyed many truths about love, responsibility, and trust. The following are some possible reasons: Love requires trust and persistence. In the TV series, the love between the protagonists Kang Moyan and Song Zhongji went through many tests, but they always supported each other, trusted each other and insisted on coming together. This tells us that love requires trust and perseverance. Only mutual trust and perseverance can win true love. 2. Love and career are inseparable. In the TV series, Kang Moyan and Song Zhongji were both doctors. Their love not only stemmed from each other's feelings, but also from their careers. This tells us that career and love are inseparable. Only by combining career and love can we create a better future. Respect each other's opinions and decisions. In the TV series, Kang Moyan and Song Zhongji respected each other's opinions and decisions when facing many decisions. This tells us that we should respect each other's opinions and decisions, understand each other, tolerate each other, and support each other. Descendants of the Sun was a TV series full of romance and sci-fi elements. It conveyed many truths about love, responsibility and trust to the audience by telling the love story of Kang Moyan and Song Zhongji.