"Little sisters are selfish creatures," my friends all say in agreement. But my twin younger sisters are probably out of the ordinary. I deeply regretted my earlier resolve not to even take my older sister's fiancé, and decided to take revenge.

Everyone says that younger sisters are inherently selfish, and all my acquaintances who are older sisters agree, but my twin younger sister was completely off the charts. Having been put through hardship by such a sister, I finally thought I would be rewarded when I became engaged to the crown prince. However, due to my sister's scheming, my engagement was broken off and I was sent to a remote frontier. I absolutely will take revenge. So what is my method of revenge?