Maybe it will be explained later, but what the fuck was their master plan?
>Highest ranking concubine escapes the palace
>takes Emperor's brother's (son's) favorite girl hostage
>All just to sit in a random fortress with some guns, waiting for a fucking Imperial army to come and slaughter them all
Even if they managed to kill Jinshi and defeat the army, the Emperor is still alive and well, preparing another army. What are they gonna do next, beg westerns for help in defeating another imperial army?