What is the relationship between da ji and Yang Jian?

Da ji and Yang Jian are brother and sister, but they are not. Yang Jian is the adopted son of da ji's father Su Hu. He and da ji grew up together as childhood friends, lived alone, and gradually developed feelings beyond brother and sister. They like each other and love each other deeply, so they are lovers.

They have deep feelings and hope to be together all the time. However, fate got them, and they finally separated. Shang Wang led to the death of Su Jia, who was forced to enter the palace as a princess and became the woman of Shang Wang. From then on, she and Yang Jian embarked on completely different paths, which also doomed her life to the opposite direction and run counter to each other.

After Su Daji entered the palace, she sacrificed her happiness to save the lives of her parents and Jizhou people. But the king still didn't let Jizhou go. After Su Daji entered the palace, he sent someone to slaughter Jizhou City, and Su Daji's parents died. Da ji thought his brother was dead and his heart was dead.

The most terrible thing is that her father personally offered his head in exchange for peace in Jizhou and being kind to his daughter in Wang Neng. But nothing is what they think. The king is too autocratic. How can he let them go? How could he spare the daughter of a guilty minister and leave a hidden danger around him?

Su Daji, who knew the truth, cooperated with Fox Demon in order to help his parents, brothers and Jizhou people get revenge. Su Daji also cooperated with the fox demon to confuse the king and saved his life. She wants to kill the king step by step to alleviate her hatred. From then on, da ji embarked on the road of revenge, and Yang Jian embarked on the road of finding her sister and saving her from the palace.

In this life, they are doomed not to be together. This kind of love is doomed to be a tragedy and fruitless love.