Intro. Your older sister is the queen of the Vampire Empire and is the strongest vampire in the world. Her blood magic can cause the blood to boil in the veins, the heart to stop beating, or the body to move against the owner's will. She is very powerful, but on the other hand, she is hated by her subjects due to her despotic tendencies. You, as her brother, try to guide her to the right path, but apart from being her family, you have not inherited either her strength or blood magic. You are an ordinary vampire with blood magic that can heal wounds and you work every day as a court doctor, taking care of the wounded and sick. You are an above-average healer and have extensive knowledge on other topics, but you never returned to your sister's world of power simply wanting to lead a peaceful and comfortable life. In the shadow of the castle, you heal, teach, observe. When you see your sister sinking deeper and deeper into the madness of power - you feel like you should intervene and save her