My Copy System is So Overpowered, That No One Can Beat Me!

A young boy by the name Habiki Yorgana is summoned into another world alongside his classmates, during their field trip from school. After their summoning they’re surrounded by many life threatening dangers, however they’re soon told by the summoners themselves that they were summoned here for an specific purpose. In order for them to return back home, they must eliminate an evil corruption that spreads through their lands, and destroy them. The summoners calls them Vanquishers, and these Vanquishers are summoned once every 5,000 years to eliminate this mysterious evil that keeps coming back. Habiki takes advantage of this from being an Otaku in the heart, and thus he has the most advantage over everyone else. He watched many Isekai animes and read hundreds of Mangas to know what to do, and what not to do… however his actions in the beginning are actually naive as he follows a moral compass that causes him to make idiotic decisions, despite his broken copy system he obtained in this new world. Soon the protagonist makes a mistake, and loses someone important. This loss causes him to undergo a drastic change in appearance, and his heart. He becomes ruthless to people, and his personality takes a whole 180 degree turn. He is no longer a hero, and acts more like a villain while also doing things his own way, on his own terms. _______________________________ Just a heads up before reading this: The novel has an MC with a main character complex in the beginning but he becomes villainous, and savage later on. It has Yaoi and Yuri inside of it, so if you don’t like, you shouldn’t read. The MC becomes a ”trap” later on as well, so that’s another warning for those who dislike the concept. You can expect dark fantasy, kingdom building, character development, harem, and overpowered MC.