My daily life as a vampire teacher

In one of the ancient legends, it was reported that the bloody war between vampires and humans lasted 1,000 years, until man came with his heart and pure blood to stop this war. He sacrificed himself to save the world. After his death, he was called the angel of blood, and since then there have been no wars between the two parties, humans lived in peace, vampires hid for fear of war, but that legend has its sequel that many do not know. It is said that a human will come who inherits the power of the angel of blood. They will love him and rule Vampires ......