I Created the World's Most Terrifying Horror Realm

In Year 00 of the Blue Star calendar, the Horror World descended, randomly claiming human lives and leaving humanity's fate hanging by a thread. By Year 10, the Horror World was still terrifying, but humanity had discovered its rules and begun to conquer it, gaining resources from within that could make them stronger. In Year 49, the most dangerous SSS-rank Horror World descended, devouring hundreds of millions of people. Qin Hei was the sole survivor, but he had lost his memory. After that, he lived in peace for three years. But it was only an illusion. The arrival of the Horror World System brought his memories gradually back to the surface and revealed the undercurrents churning beneath his tranquil life...