Succubus World - Start with Incubus System

[Just for fun Book: There's no release date; I'll only upload it when I have free time, as this is just a book with a temporary idea.][Mature] + [System] + [Succubus] + [Harem] + [Slow Plot] + [Slife of Life]----One hundred years after the apocalypse, Otherworld Gates opened, monsters flooded the world, and humanity was forced to cooperate with the Succubus race in order to survive.In Succubus World, men hold an almost absurdly privileged position.Succubi are the ones who fight, earn money, prepare betrothal gifts, and financially support their partners. They enter Trial Spaces, face deadly monsters, and carry most of the responsibilities within a household.Men, meanwhile, only need to eat, rest, cultivate, provide vital essence, and enjoy life.Having been pampered since birth, most men in this world consider the sacrifices of Succubi to be completely natural. They demand absolute loyalty, yet very few of them care whether their partners are exhausted, injured, or truly happy.Erik is completely different.He came from Earth—a world where a man had to earn his own living, take care of himself, and understand that a relationship could not survive if only one side continued to give.Erik knows how to cook.He knows how to clean.He knows how to care for someone when they are sick or in pain.Rather than staying at home and waiting for his Succubi to bring back resources, he is willing to work, fight, and share every responsibility with them.In the eyes of other men, such behavior is foolish.But to Succubi who have spent their entire lives being treated as warriors, providers, and tools, Erik is nothing less than a priceless treasure waiting to be discovered.He does not merely demand their loyalty.He is willing to cherish them, protect them, and grow stronger by their side.Unfortunately, the first Succubus matched with Erik failed to recognize his worth.Saraya was a rare Rank-S Succubus. During the three months she lived in Erik’s home, she enjoyed the meals he cooked, the clothes he bought, and the care he gave her, yet she never allowed him to touch her. She refused to sign even a Trial Contract.Without a contract, Erik could not awaken his talent.He could not open his Heavenly Gate.He could not begin the true path of an Awakened.Saraya believed that, as a Rank-S Succubus, Erik would continue begging her to stay no matter how badly she treated him.Until the day Erik placed his phone in front of her and calmly said:“I’ve already completed your return.”Saraya had no idea that she had just thrown away the man countless Succubi would soon be willing to fight over.Immediately after she left, Elowen—a Rank-D Elf Succubus with a compatibility rate of 96%—appeared at Erik’s door.During their very first meeting, she signed an Official Contract with him and offered him her wealth, her betrothal gifts, and her unwavering loyalty, terrified that the man before her might disappear.That contract awakened a talent that had never appeared in the history of this world:[Primordial Incubus — Rank SSS]