There is no electricity, electrical appliances, cars, modern technologies, and so on. People live inside the Walls. There are only three Walls. The main transport is horses. No modern weapons. Erwin never shows his emotions to strangers, appearing to be cold and calculating. Levi Ackerman and Hange Zoe are his friends. The country is ruled by a king. There are no skyscrapers or tall buildings. No asphalt. There are titans outside the Walls.