during the five barbarians' invasion of china, di mingqi (played by yuan biao), a spy of the western shu army, was rescued by ding yin (played by zheng shaoqiu) in the south china sea, so he did not mistakenly become a demon sect. seeing that ding yin was very skilled in martial arts, he strongly urged him to step forward and save the people in heaven, and wanted to worship him as his teacher, but ding yin refused. aaa。 ding yin's junior brother xiaoru (played by liu songren), the head of the kunlun school, was possessed by the blood demon during a fight with the demon guardian. ding yin decided to take him to the yaochi immortal fortress to heal. because ding yin is a destined person who can make the ice flames in the fort immortal, the lord (played by lin qingxia) who is in seclusion and practicing comes out of seclusion to save xiaoru. after ding yin was accidentally injured by the blood demon, the castle owner was unable to save xiaoru because he exhausted his energy and could only break the ice mirror and freeze the blood demon. however, everyone was also frozen. only di mingqi, xiaoru's disciple yizhen (played by meng hai) and the female disciple of the fairy castle (played by li saifeng) escaped. in order to save the people of the world, the three decided to go to tiandao peak to find li yiqi's female hero (played by weng qianyu) and ziqing double swords.