Which episode is the birthday of Emperor Huanzhu Gege?

Huan Zhu Princess 2 Huan Zhu Princess 2 Episode Plot Introduction Episode 12

The queen learned that the little swallow was stung by a bee and her head was full of bruises. She came to Shufangzhai to watch the joke. The swallow was not willing to give up the trick and stuffed the flower petals into the queen's hat. As a result, when the queen came to the royal garden, a swarm of bees attacked the queen and Rong. Seeing the queen, she was so frightened that her face turned pale. The swallow and others were laughing happily. Erkang, Ziwei, etc. On the day of the Emperor's birthday, he carefully planned a wonderful program to celebrate Qianlong's birthday. Qianlong was greatly surprised. However, when everyone was immersed in the happy birthday banquet, evidence of the murder of Qianlong was found in Shufangzhai. In jail