The main character is from another world but doesn't seem smart about things in the home world. The main character is an adult office worker who is supposed to be quite smart. It's ridiculous that the knowledge of the modern world is not used in another world, in fact the main character is too dependent on his followers and their interpretation skills. If modern knowledge is applied in another world by the main character, it will be easier to win the battle in this comic story. Knowledge of making bombs, gunpowder, firearms. I think this is basic knowledge if a sane personfrom the modern world is going to war and wants victory in fiction or real life, especially since this concept is Reincarnated from the modern world. And why are details like this not thought of by the author of this manga? ? And also I am quite disturbed by the child mentality with the main character's innocent face even though it was clear that in his previous life the main character was an adult man? The author must explain whether becoming Reincarnated will reset the personality and intelligence of the main character too? I hope the author of this manga series will pay more attention to small details and initial concepts according to the title and prologue in this story so that it makes more sense and attracts readers' interest. Because in my opinion, readers' current interest prefers main characters who are smart or overpowered rather than main characters who are innocent and naive.