In the autumn of Zuo Youqun's twenty-four years old, it was raining in the twilight, and her sister Zuo Youtang, who was a doctor, was taken away from the Tiecang tribe by a woman named Qiao Guangchong. Before she got into the carriage, she saw a group of tears in her eyes, and said to him with a smile: "I just went to study medical skills, what is there to be sad about?" They're all so adults, don't be like children! I'm gone, take care of yourself! When it's cold, you add some clothes. After saying that, she turned around and got into Qiao Guangchong's carriage.

The light rain suddenly turned into a torrential downpour, cracking and hitting the ground.

Zuo Youqun shouted loudly in the rain: "Sister, if you leave, your home will be gone!" I don't know where you're going, but I'm going to go to you in the future, I'll be home sooner or later! ”

Zuo Youtang heard Zuo Youqun's shout, and didn't look back at Zuo Youqun at all, but he cried silently in the carriage.

The carriage drifted away in the heavy rain.

Zuo Youqun wiped his eyes with his hand, and suddenly remembered that the birthday gift he had prepared for her in advance had not been given to her, so he chased after him desperately, shouting while chasing: "Wait a minute!" Sister, I haven't given you a birthday gift yet! ”

Unless the carriage was stopped at this time and the people in the carriage waited for him to go back to get the gift, it would be useless even if he caught up, he didn't have the gift with him. However, he apparently could not catch up with the carriage, and soon it disappeared from his sight.

Zuo Youqun went back to the place where he thought it was no longer home in the rain, and stared blankly at the birthday gift he had prepared for Zuo Youtang in advance.

The gift was a small stone mortar. A few days later, it was Zuo Youtang's birthday, and he planned to give it to her on her birthday, but who knew that Zuo Youtang left before his birthday.

Zuo Youtang is fourteen years older than Zuo Youqun. As early as when Zuo Youqun was one year old, their parents were framed while practicing medicine and were wrongfully executed for intentional homicide. Fifteen-year-old Zuo Youtang moved with Zuo Youqun to a place where no one knew about their parents' situation, practicing medicine for a living, and Zuo Youqun was raised by Zuo Youtang. Zuo Youtang has been practicing medicine with his parents since he was a child, and he especially likes a stone mortar, and she is never willing to use it, she always puts the stone medicine mortar in one place, separate it from other mortars. Later, the mortars were lost by the young Zuo Youqun. Zuo Youqun gave her a mortar several times when she grew up, but after all, it was not the original one.

Many years have passed, Zuo Youqun actually saw the medicine mortar he lost when he was a child in the market, bought it in surprise, and planned to give it to Zuo Youtang on her birthday, but before she saw the medicine mortar, she had already gotten into Qiao Guangchong's carriage.

Qiao Guangchong is strong in martial arts and dominates one place, but he has been poisoned. The poison does not kill people, but it makes people suffer for a long time, and when the poison occurs, she may kill people at will. Over the years, every once in a while she would bring back a doctor to study the antidote for her, no outsiders knew where those people were taken by her, and the doctor she took away never returned.

The person who helped her find a doctor was called Qiao Anbo, who was Qiao Guangchong's brother.

At that time, after Qiao Anbo knew that Zuo Youqun had used the wrong medicine for Tie Wandao, he went to Zuo Youtang and said that if she didn't leave with Qiao Guangchong, he would tell her brother Zuo Youqun that there was a mistake in dispensing medicine for Tie Wandao, so that her brother would die without a place to be buried.