Old Observer, There Is No Upper Limit to My Values.

Under the surface of modern cities, taboo knowledge and unspeakable terror quietly breed. Ling Yuan, a third-rate suspense novelist, accidentally awakened the "Eye of the Abyss" and was able to look directly at the true appearance of mythical creatures without falling into madness. Instead, he was able to draw strength from them. He was absorbed into the mysterious organization "The Thirteenth Archives" and began to investigate a series of strange supernatural cases. As the investigation deepened, he gradually uncovered a huge conspiracy that attempted to summon the Old Ones and subvert human civilization, and eventually stood at the forefront of the fight against cosmic terror.