In order to find the ring Mochi mentioned. Yuni can't avoid physical contact with Prince of Ye. He took the advantage and kissed her. At the same time, Prince of Ye found that the Grand Councilor was cheating on the Emperor and the true identity of Yunxi.
You're gaining weight. 
Everyone in your palace is.
أنت من يكسب وزناً وكلّ من في القصر
Alle hier im Palast sind am Zunehmen.
Starai ingrassando tu. Come tutti a palazzo.
Você está engordando.
Вы тоже набираете. 
Как и все в дворце.