Purple pupil black dragon of the pirate king

Introduction: This book is a slow-burning book. As for whether there will be a female protagonist, it has not yet been decided. It is definitely not a harem. The dragon of darkness that devours everything comes to the world. "Freedom? What is the difference between unrestricted freedom and beasts? Only order can make this sea peaceful." The secret." said the man named Isaac. "Is this an excuse for you to conquer the world?" "Oh...my dear brother Ryder, I think I'm going to shove Electrolux's boots into your mouth." I have no interest in the big secret treasures of that world. I really want to sit on the throne and try it~ I am a being who can be called a monster by monsters.