I'm not sure as I haven't read the specific 'Behind the Blue Curtain' short story. But generally, the main characters could be the ones who are most involved in the action related to the blue curtain, like the ones who are trying to peek behind it or are affected by what's there.
It could be about mystery or secrecy. Often, a 'blue curtain' can symbolize something hidden or not easily accessible, so perhaps the main theme is uncovering the secrets that lie behind this 'blue curtain'.
The mastermind behind Si Lili was Wu Bo 'an. In the play, Si Lili and Wu Bo 'an conspired to assassinate Fan Xian and used the Second Prince's banquet to carry out the plan. In the prison, Fan Xian had used torture to force a confession and learned the identity of the mastermind from Si Lili. Therefore, Wu Bo 'an was confirmed to be the mastermind behind Si Lili.
I'm not sure as I haven't read it. But usually, the main characters are the ones who drive the plot forward. They could be ordinary people with extraordinary stories, or they could be more complex individuals with many layers to their personalities.
The mastermind behind Si Lili was Wu Bo 'an. In the play, Si Lili and Wu Bo 'an conspired to assassinate Fan Xian and used the Second Prince's banquet to carry out the plan. In the prison, Fan Xian had used torture to force a confession and learned the identity of the mastermind from Si Lili. Therefore, Wu Bo 'an was confirmed to be the mastermind behind Si Lili.
The mastermind behind Si Lili was Wu Bo 'an. Wu Bo 'an and Si Lili conspired to assassinate Fan Xian and used the Second Prince's banquet to carry out the plan. In the prison, Fan Xian had used torture to force a confession and learned the identity of the mastermind from Si Lili. Therefore, Wu Bo 'an was confirmed to be the mastermind behind Si Lili.
There were different versions of the mastermind behind Si Lili's actions during the Spring Festival. Some results mentioned that Wu Bo 'an was the mastermind behind Si Lili, while others pointed out that Lin Gong and the Eldest Princess Li Yunrui were the real masterminds. However, there was not enough information to confirm whether Wu Bo 'an was the mastermind behind Si Lili. Therefore, there was no conclusive answer as to the true identity of Si Lili, the mastermind behind the celebration.
The mastermind behind Si Lili was Wu Bo 'an. In the play, Si Lili and Wu Bo 'an conspired to assassinate Fan Xian and used the Second Prince's banquet to carry out the plan. In the prison, Fan Xian had used torture to force a confession and learned the identity of the mastermind from Si Lili. Therefore, Wu Bo 'an was confirmed to be the mastermind behind Si Lili.
The mastermind behind Si Lili was Wu Bo 'an. In the play, Si Lili and Wu Bo 'an conspired to assassinate Fan Xian and used the Second Prince's banquet to carry out the plan. In the prison, Fan Xian had used torture to force a confession and learned the identity of the mastermind from Si Lili. Therefore, Wu Bo 'an was confirmed to be the mastermind behind Si Lili.