Crown Prince Fu Yuesheng had been waiting outside the palace all this time, and he did not leave on his own due to the emperor not summoning him, especially since Prince Yan had forbidden him to leave and explicitly instructed him to safely bring Ji Ruyan back to the Prince Yan Mansion.
As soon as Fu Yuesheng entered, he hurriedly asked, "Uncle Emperor, what poison exactly did the Crown Prince contract?"
"Fierce Liquor Fragrance from Yi Country."
"Yi Country?"
Fu Yuesheng paused for a moment, lost in thought.
In the entire Imperial Palace, the only person from Yi Country was Consort Xue.