Marry my cousin to save my native kingdom from turmoil? A wonderful plan! However, Yamin Silverwing, the first heir of the demons, does not agree with him, because he is my real fiancé. Eliminate enemies, investigate the death of my brother and touch my memories, in which hide many secrets. And the main thing is to stay away from one obnoxious demon, so that later you will definitely fall in love with him! A terrible plan...