If you are a young duchess and crown princess, this does not mean that you are destined for a comfortable existence. On the contrary, it means that your life hangs by a thread. In the world that has come to Earth after the devastation of the "Storm of Wars", the children of kings, presidents and other rulers are locked in a monastery that is very little different from a prison. Their life is the key to peace. If the country declares war on its neighbors, the heir to the ruling family will disappear without a trace. So decided Talis, artificial intelligence, the all-powerful and all-seeing guardian of humanity. And nothing can be changed. You can only try to behave with dignity, like a king, when the Swan Rider appears to take you into the unknown, beyond the boundaries of human existence.