Sky Island for All: the Succubus Signed a Contract at the Beginning!

[National Survival] + [Cthulhu] + [Definitely not a cliche universal story] + [Sky Island] + [Succubus] + [The protagonist is decisive in killing] + [Not the Virgin] Yang Ming, an ordinary college student, accidentally traveled to an empty island to survive. After signing a contract with a mysterious succubus, he thought he was about to become invincible and embark on the path to becoming a god. However, he discovered that something was wrong with the empty island he was on. "What? It was promised that the invincible Goldfinger would start, but my sky island turned out to be a cursed restricted area?" "What? Just pick up a piece of torn parchment, and the whispers on it can clear someone's sanity?" "What? I wanted to catch a fish in front of my house to improve my food, but I caught an old relative who could stare me to death?" "What? Being forced by a cultist to play a death game, with the stake being your own life?" Yang Ming struggled to survive on this hellish island abandoned by the gods and overrun by monsters. However, when he finally gained a foothold in this desperate situation, he suddenly discovered: "What? The legendary weapon that you all are competing for on the server is the fire stick that I threw away because I was too ugly?" "What? The world boss that you regard as a god is an ornamental fish raised in my pond?" "What? In order to survive, the world-destroying silver dragon turned into a dragon lady and begged me to take him in?" When the world is still afraid of darkness, Yangming has already become the darkness itself.