After a mysterious event on Earth, portals emerge, connecting six distinct worlds: the Magic World, the World of the Gods, the Demon World, the Fairy World, the Cultivation World, and the enigmatic Night World. the humans has the opportunity to awaken a unique talent and cross one of these portals. Our protagonist, a young man named Ray Nigty considered weak since childhood, awakens to the Night class, an obscure and powerful ability. From this moment on, the greatest nightmare of existence is born, the terror that haunts worlds and universes. Ask all of existence what they fear most? The answer is the Night Demon King. "The silence of the night is my domain, and in it, I reign supreme."