The plot of the Eldest Princess sacrificing herself to the Crown Prince in Qing Yu Nian's novel happened in Volume 6, Chapter 86. Information about the specific episodes of the eldest princess sacrificing herself to the crown prince in the TV series "Celebrating Years" was not found in the search results provided. Therefore, it was impossible to determine which episode the plot happened in the TV series.
The plot of the Eldest Princess sacrificing herself to the Crown Prince in Qing Yu Nian's novel happened in Volume 6, Chapter 86.
In Qing Yu Nian's novel, the plot of the Eldest Princess sacrificing herself to the Crown Prince happened in chapter 86 of the sixth volume.
The plot of the Eldest Princess sacrificing herself to the Crown Prince in Qing Yu Nian's novel happened in Volume 6, Chapter 86. Information about the specific episodes of the eldest princess sacrificing herself to the crown prince in the TV series "Celebrating Years" was not found in the search results provided. Therefore, it was impossible to determine which episode the plot happened in the TV series.
The plot of the Eldest Princess sacrificing herself to the Crown Prince in Qing Yu Nian's novel happened in Volume 6, Chapter 86.
The plot of the Eldest Princess sacrificing herself to the Crown Prince in the novel Qingyu Nian happened in chapter 86 of volume 6.
The plot of the Eldest Princess sacrificing herself to the Crown Prince in Qing Yu Nian's novel happened in Volume 6, Chapter 86.
The plot of Princess Qing Yu Nian sacrificing herself to the Crown Prince appeared in the sixth volume, chapter 86, of the novel " Qing Yu Nian."
The plot of Princess Qing Yu Nian sacrificing herself to the Crown Prince happened in the 22nd episode of the TV series " Qing Yu Nian."
The original Qing Yu Nian novel did not clearly describe the Eldest Princess's devotion to the Crown Prince.
There was no clear description of the plot of the Eldest Princess Qing Yu Nian sacrificing herself to the Crown Prince in the search results provided. Therefore, it was impossible to answer this question with the information provided.