The Sun Breaks Through the Dark Night, the Moon and Stars Shine

In contemporary bustling cities, there are this group of immortal people. They have existed in this world since the Ming Dynasty, only to complete a special task. But their immortal bodies survive by permanently sucking human blood. Therefore, in order to eliminate these people, there are such people in the world. They pass down martial arts from generation to generation, just to eliminate those monsters and restore stability to the world.