Immortal Demon Sword Record: Immortal Coming

Can a new life really change everything? Why can't I save the person I want to save no matter what I do? After Xu Jing's death, he found that he was 16 years old again and embarked on the path of cultivating immortality again. He wanted to save the people who had died for him, but found that he could not do it at all. Major historical nodes cannot be changed, so can he save himself?