Episode 1
S1E1
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When Prince Ning Xuanzhou became a hostage in a rival country, he found himself forcefully rooming with Master Hua on the very first day. However, Hua Xiyu, who had been disguising herself as a man since childhood, mistakenly believed that Ning Xuanzhou, the secret spy leader, was a princess. Their fake friendship blossomed into a real romance. As for the villainous forces that sought to ignite a war between the two countries and tear them apart, they were joyfully defeated by the couple working hand in hand.