In both titles main character is a guy who is dragged into another realm and has to finish certain quest in order to get back to his world. What's special about these two isekai animes is that main character starts as somebody seen as weaker compared to other people who were dragged into another realm. That results in constant laugh at him from his fellow comrades, or even discrimination. In both cases our main heroes are getting stronger as fast as it is possible, to the moment they are overpowered and the others have to change their opinions on them. Their adventures also depict how they will deal with their new, mighty powers.