As the only descendant of Yaowang Valley, Lin Zhixia has learned all his life to "save people". She disguised herself as a man and hid in the mountains. She thought she would be accompanied by medicinal herbs and hang a pot to help the world. Until that day, she picked up a man from the stream who was covered in blood and had no memory. He was handsome and silent, like a wolf that had restrained its sharp claws and would only reveal its gentle and soft belly in front of her. Lin Zhixia called him "Achen". She taught him how to identify herbs, and he taught her how to line up troops as a game. She mended clothes for him, and he whittled wooden hairpins for her. In that valley where peach blossoms bloomed, she thought she had picked up the lover she would stay with for the rest of her life. Three years later, the war between the two countries resumed, and the northern army pressed on the border. The legendary invincible and ruthless enemy general - Xiao Jue, came across the mountains and rivers. When he was wearing black armor and standing in front of thousands of troops, with no trace of the warmth of "Ah Chen" in his eyes, Lin Zhixia suddenly realized. It turns out that what she saved was not a wolf, but an evil dragon that could eat its owner. On the day the city fell, she climbed onto the tower in plain clothes, holding in her hand the wooden hairpin he had cut for her in the past, and the tip of the hairpin was pointed at her throat. Xiao Jue's eyes were about to burst, but he saw her suddenly smile, put the wooden hairpin into her hair, and then showed a silver needle and said to the three armies: "Xiao Jue, you once said that soldiers are also deceitful. I have learned all the tactics of war you taught me. Now, this one hundred thousand people and an isolated city is the battlefield where I will defeat you. Do you dare to fight?" I thought it was a farming article, but it turned out to be a plot of tactics. After saving the amnesiac enemy general, he led his troops to attack me.