An ordinary young man was preparing to play a mobile game called "Vampire Disaster" at home. Due to the collision between a cup of coffee and the phone's current, he encountered an unexpected fate - being transported to a strange world full of magic and legends. In this mysterious and eerie world, before he could think in detail, an incredible voice rang out in his mind, indicating that he had obtained the bloodline power of the first generation of vampires. What was terrifying was that this process was irreversible. At the slightest hesitation, he began to painfully experience the fusion of his bloodlines. With the awakening of his inner strength, he gradually realized the potential of his vampire identity. When he began to explore his new system and combat skills, the dangers lurking in the shadows gradually approached. Can he find a way to survive in this mysterious and perilous new world? --- Ten years ago, a qualification challenge was held in the Kruk Duchy, marking the first time the Duchy was chosen by the Holy Light Academy as one of the competition nations.