The story was fine until the main character decided he was going to be a fighter and his target goal was to annihilate an whole country because of a few interactions. Nathan was presented as a man of logic, science and reasoning but he decided to become a raging meathead when it came to fighting. All of his fights devolved into him running around almost naked, bleeding everywhere like an idiot, and almost dying while trying to punch things to death. If he didn’t luck out with acquiring his regen talent and enemies conveniently avoiding headshots or bisections for the most part then he would be dead. He doesn’t wear any armor, he doesn’t wear an helmet, nor leather protection. He doesn’t carry basic weapons with him like a knife or club. Armor or weapons don’t need enchantments to useful. When he did get spears he only used one once in a fight and never used one again. Almost all his fights are him running at enemies he is ill equipped at fighting and plot keeping him alive. For example, he decides the best way to fight a horde of zombies was to fight hand to hand while they ripped him apart hoping his regen and allies would see him through. You know instead of having a spear or glaive to put melee enemies at a distance using his new acquired strength to good use. You would think a character who spouts so much scientific knowledge throughout the story would recognize that his fighting style of being a raging berserker is extremely flawed. Especially, when he does go berserk he almost always gets himself nearly killed because he gets lost in the “thrill”. Speaking of strength, the author does a poor job explaining how strong the characters are and what progress through leveling actually represents. When Nathan jumped to level 27 to 33 or to 44 there’s no real indication of how much or what kind of increase those levels add to him as a person. We are told he is stronger and we get some feats of strength but it’s all over the place. I couldn’t tell whether the final duel at the end was fair or he was lucky because the story is vague on how strong Nathan is. Out of nowhere we are told his skin is as hard as metal but when the hell that happened?

I didn’t like how he declared that a whole nation must die based off the conversation he had with one person. He has no idea how the rest of giant rest actually operates and he has no reason to trust the nation he ended up with to tell him the whole story. For all he knows they could be lying to him and only a small fraction of giant’s rest is awful. As a modern man, he should recognize how small minded his rationale is giving how he has all of earth’s own history as an example of the folly of that way of thinking. I like when he used modern solutions to fix old world problems. However, it’s not realistic that he taught advance math and scientific theories to an adult person from the middle ages in weeks and that math properly applying to magic. What does those numbers mean to a girl who makes fire and force come from her body by magic? What equation is she using to somehow produce magical results that totally doesn’t destroy the laws of physics in which does equation rely upon? I get what the story was going for but it falls apart when you really think about it.