Dude going around while doing quests, saving people, killing bandits, selling modern knowledge on how to harden steel or make coking coal, while being a college student gamer. Moral problems with killing people? Nope. Problems with selling his convenient modern knowledge? Bah! Of course not. Pretty boring generic power fantasy. This guy becomes a millionaire few days in (but he is not shown to use money on anything, beside his initial gear), and he is still doing his adventuring stuff for some reason. No politics, no drama, no romance, no actually life-threatening situations, no conflicts bigger than a few chapters, extremely rare fanservice. BORING. Only thingthat is kinda entertaining is his conveniently OP found by chance partner - Lia. Looks and behave like a little cute animal. Very cute. She is the single reason why this manga can be rated as a 6. Without her this whole thing would be so gray and boring, that you would need to pay people to read this.