You will tell me the legend of the Blood Wolf, a noble knight who fought for the Holy See and went on an expedition to Persia. Once he was captured and lost contact with the troops. His fiancée, who was waiting for him in the distance, believed the rumors and mistakenly believed that he had died in battle. She was so sad that she jumped off the cliff on a full moon night and died. Seven years later, the knight escaped and came back. Also on a full moon night, he heard the news and was heartbroken. The power that originally supported him to survive had disappeared on the same night 7 years ago. His world began to collapse, but Mingyue remained oblivious as if nothing had happened. That night, on the cliff where his fiancée jumped off, he transformed into a wolf, roaring at the bright moon every night, cursing the blood. From then on, the blood flowing in his blood was not red but blue. From that night on, the moon began to bleed, so every time the moon rose or set, you would see a red moon. The years are changing, the world has changed, and the descendants of werewolves are also remembered as blue blood.