Genres: modern knowledge, kingdom building, teleportation
English Name: Takarakuji de 40-oku atattandakedo isekai ni ljuu suru
This is also one of the top manga in kingdom building with modern knowledge. In this manga MC goes to another world and his surrounding reminds him of medieval Europe.
After his grandmother’s death he settled in her house. In the house he finds out that the house actually connected to another world. After wondering in another world, he finds out that this world is not developed and the people who lives here didn’t know modern science and technology.
So, he decided that he will help the people of this world to learn the knowledge of the modern era. In between that he found out that he is not the only one who come earth to help them.