The Seventh Princess of Great You Country is always uneasy, because the abilities of the world's fugitive are extraordinary, even able to escape from the perilous Red Lotus Palace. This minor advancement might not pose a challenge to him.
She had the thought of retreating, so she spoke to her eldest brother.
The Crown Prince of Great You Country, upon hearing this, thought it made sense.
Lin Yifan being a "world's fugitive" suggests that his strength is exceptional; achieving an advancement that most ordinary Cultivators can manage, that kid will surely succeed.
His purpose in coming to the Land of Volcanoes was to find an opportunity to put Lin Yifan to death. Now that the opportunity seems to be slipping away, he sees no reason to stay here.
Besides, he is not a match for Princess Qingyan in trying to seize the treasures Lin Yifan carries.
Since there is no profit to be had and danger exists, why stay here?
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