A book written by his friend Xuanyao brought Han Qili to the world of Kyushu. It turned out that Xuanyao was the prince of the Yunwen Kingdom and later became the emperor. However, Han Qili was thrown into the prairie by time and space and met Ke Hong, the king of the prairie. Ke Hong fell in love with Han at first sight because Han looked exactly like his late princess, and Han was also attracted to her. Ke Hong's cousin Han Xili married Xuan Yao and became the queen. Xuan Yao disliked him extremely because he had already fallen in love with Han. Han was very angry with Xuan Yao's attitude and asked his brother Ke Hong to lead troops to attack Yun Wenwen. Ke Hong had no choice but to lead his troops to fight for the sake of the face of the grassland people. But he was killed by Xuan Yao. Han Bei has Ke Hong's flesh and blood. He had to pretend to marry Xuanyao and give birth to a child. Xuanyao thought that the child was his, so he made him the prince. After the prince grew up, Han Yu wanted to kill Xuan Yao himself, but found out the reason why he came to Kyushu many years ago...