My engagement was broken off and I was sent to a remote region due to the crime of bullying my younger sister. I'm the older sister. For some reason, I became an apprentice to a magician and have been working as a trainee, but then my younger sister showed up there.

I was stripped of my engagement and exiled to the frontier as punishment for bullying my younger sister. On the way, I was attacked by bandits and rescued by a sorcerer. Though it was actually I who was being bullied by my sister. But no one would believe me. And then, years after becoming a disciple of that sorcerer's master, for some reason my sister—now the Queen—came to me as a client.