The Cannon Fodder Fiancée of the Male Protagonist in a Period Novel

Song Dynasty has passed through the period literature. According to the plot, she fell into the water and was rescued by the male protagonist Xu Jingnian who was passing by, but she repaid her kindness and asked him to take responsibility, and became his fiancée. She is truly in love with the male protagonist, but she is helpless, stupid, and constantly seeking death. She is just a stepping stone on the road to love between the male and female protagonists. However, Song Dynasty is here. She consciously acts as a stepping stone and works conscientiously as a catalyst, dedicating herself to the love between the male and female protagonists and burning herself! Finally, the plot to clear up the big misunderstanding came. From now on, the male and female protagonists will be with Mei. Song Jinchao gave up his seat very sensibly. Unexpectedly, as soon as he reached the door, the door was opened from the outside. A tall and straight man wearing a uniform walked in, bringing with him the cold air from outside the door. The man glanced at the luggage in her hand and paused, then said in a very light voice, "Where are you going?" Song Jinchao's heart trembled when he heard this, and he subconsciously stepped back: "..." -- Xu Jingnian came from a privileged family and had a promising future. However, because of his good deeds, he was entangled by a country girl who was greedy, stupid, and of extremely bad character. He had to be separated from his deeply affectionate sweetheart. Everyone in the military district in the border town felt extremely sad and concluded that the country girl would not end well, and they all waited to see her good show. But I saw girls from the countryside setting up girls' schools to help children in impoverished mountainous areas go to school and provide job opportunities for women in trouble. Everyone: "..." - Intention:.