In which episode did Beibei decide to quit the chorus?

According to the original plot, the plot you said appeared in episode 49? Beibei stood up, as shown in the figure below:

The main content of this episode is: Beibei overheard that the night of the handover of the twelve constellations was a performance night, and she was very depressed, so she proposed to quit her dream of Angel Song and the dance company. After Xiaolan and Amusement were discovered, on the one hand, teacher Kelly was arranged to tell her sister's story to inspire Beibei. On the other hand, arranged Xiaolong and others to make origami windmills to encourage Beibei, who was very moved. I also heard from the prince of amusement that as long as everything goes well, it doesn't matter much to attend the performance that night. Finally, Beibei gave up her original intention and continued to perform with her classmates.

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