To be precise, it's not inside the brothel but in the secret chamber beneath it.
As soon as they entered the secret chamber, Meng Zhuqing and Meng Lanqing tended to Xiao Changyi's wounds. Because Tobanya and Gong Juese were women, they had to avoid suspicion and waited in another secret chamber.
The leader of the masked men also came in.
The other masked men did not enter; they went to kill those Dongqing soldiers. They really intended to take out the entire 100,000-strong Dongqing army!
Once Meng Zhuqing and Meng Lanqing finished treating Xiao Changyi's wounds, they tended to their own. They were also injured, but not as severely as Xiao Changyi.
Tobanya was also injured, but her condition was slightly better than that of Meng Zhuqing and Meng Lanqing. Originally, Meng Zhuqing wanted to treat Tobanya's wounds first and then his own, but Tobanya insisted he treat himself before treating her.
