Shadow Hegemon: Dominating with the Ultimate Succubus Slave

The Great Change have come to Earth. Disaster zones open at random, unleashing waves of monsters into the world. Humans with the power to fight them are called Skill Users. Their strength is drawn from skill books shared by Nobles who are rumored to have come from outer space. Damien is a normal person living in this reality, where death waits around every corner. One day, he gained the power to enter the game world and bring everything from there back to reality! While others struggled to survive, he became invincible by playing games!