The male protagonist was in poor health since childhood, and was later sent to the border by his father and brother to learn martial arts from his grandfather, and slowly became a young general;
The heroine grew up in Yaowang Valley and learned medical and poison skills. Everyone knew that her medical skills were superb, but little did they know that her poison skills were even more proficient.
The hero and heroine have known each other since childhood, and their love has blossomed. She understands his ambition and wants to protect the peace; he understands her ideal and wants to see the people live a happy life;
The love between the two began with a letter, but they could not tell each other their love in writing. The letter was filled with letters and could not be sent.
The male protagonist spent the rest of his life guarding the border, but he came to Jiangnan year after year and sent letters to the female protagonist;
The heroine opened a women's school to teach women how to make a living; they carried out trade with neighboring countries, which increased the economy of the Qianyuan Dynasty. She also opened a trade route of her own in the south of the Yangtze River and the border gates. Year after year, she sent the food and materials needed by the border gates to the border gates, which improved the morale of the soldiers at the border gates.
He understands the things she did for him and the letters she left for him;
She understands the purpose of his coming to Jiangnan every year and cherishes the letters he left behind.
