Back pain. I feel like an old lady

Today was my training with the twin Princes about how to walk and act properly. They were a little strict, which really surprised me. I thought that this training today would end up becoming a game, but no, they are serious. Dead serious. We are currently in a huge dressing. Dan and Ren were both standing beside me as they watched. One of them, Dan, walked to the front and examined me. I countered his look with my glare. They actually put on name tags for me to easily tell them apart.

"Don't slouch," Ren said as he straightened my back once...