Yin thought she was very capable, trusted him, and assured him that she would betroth her sister to him.

I don't think so, but Di Yi of Shang Dynasty married his sister to Ji Chang, the king of Zhou Dynasty at that time ~

He was in charge of Zhou Zheng at first, but because his father Ji Li was killed by King Wen Ding, he faced a difficult choice.

Chronicle of Ancient Bamboo Books records: "In the second year of Di Yi, the Zhou people attacked the merchants", and in the second year of Di Yi, the leader of the Zhou people was Ji Chang.

As a result of the battle, the Shang Dynasty repelled the Zhou people.

As a result, there are two consequences. On the one hand, Ji Chang realized that his own strength was not enough to shake the big tree of Yin Shang. On the other hand, the Shang Dynasty also felt that fighting on two fronts was inappropriate and deliberately bribed Ji Chang.

It is against this background that Di Yi, the monarch of Shang Dynasty, made an important decision, which was called "Di Yi returned to her sister" in history.

The Book of Changes records the divination results of merchants at that time: "The emperor belongs to his sister, but fortunately."