This story maybe not has a good world building, because all of the effort that the autor puts on this manga is in developing his MC. We have an MC that is smart, trickt but most important that do not trust so easily in his new environment just because. He always think one or two steps ahead of the situation because he knows he Is weak and can die in any moment.
If you are tired of the typical isekai where the MC is overpowered and you are looking for a different kind of Isekai, this Is a good manga to start.
