After Master Dies, I Will Make the False Prince into a Human Pig

The same year when I expressed my feelings to Master, I personally ended his life. Everyone in the world thinks that I deceived my master and destroyed my ancestors, but only my senior brother is loyal to me. Not only did she allow me to be my concubine, she also pampered me even more after the marriage. But I know in my heart that all he loves is the military power behind me that can help him win the throne. And what I want is not grace, but... The life of this beast!