I saw that previously you guys were interested in this. It’s not your typical isekai. Kazuya your average friendless mc. When he is abruptly summoned to another world he is told he is to join the main army to become the hero of prophecy. But Kazuya uses the vast knowledge he gained from our world to instead help rebuild the kingdom he was summoned to in order to not fight. He is then crowned as the new king and ends up engaged to the princess. He uses his new status to bring in more ideas to help the kingdom prosper.
WRONG PICTURE SORRY