Trinitas Mundus - The Story of Saint Knight Ray

Protagonist: Sacred Rites (Hijiri Riley) had graduated from high school and was preparing for admission to college.　He has no foretaste whatsoever, and only his soul is summoned to the other world: Trinitas Mundus (Trinitas Mundus - the creation world of the three gods of heaven, earth and man), the stage of a novel he abruptly wrote himself. The　summoner was the body of a young man named Ray Arklight, the Holy Knight, who had been transferred from the world a thousand years later. Why was　he chosen and what was he summoned for? Flew into the world of his own novel without　any explanation, he is forced to live in this world. Knowing the logic of　this world, he will live with the woman mercenary who accidentally helped him, with some of his memories sealed.　And regardless of his thoughts, he gets caught up in the survival of this world... A tale of　a weak young man, Ray, with the help and growing around him. - - - - - Pretty cheesy because you have　excellent physical and world knowledge. Especially the magic is powerful, but I don't think it will be the main character's strongest because of his mental weakness. - - It's the same worldview as　Dreamlife.　Ages are subtly different, but it's pretty much the same world setup:　http://ncode.syosetu.com/n5465bn/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - (Formerly known as Trinitas Mundus —— Trinitas Mundus -)