Crouching on the icy cold deck, the natural voyager of the Wizard Li tribe replied respectfully, "Great Conqueror, according to the 'latitude and longitude algorithm' that you taught me, I have already recorded the route, chasing the mainlanders in detail."

The latitude and longitude mentioned by Bansaru was the imaginary auxiliary line imitated by the Wizard Li tribesmen from Earth civilization for measuring the azimuth. The definition is the same as the latitude and longitude of Earth, of which its trajectories were formed by a certain point on the surface, formed by the planet's own rotation, wherein the latitude was oval in shape and were parallel to each other, its length was the multiplication result of the planet's equator circumference and the cosine of the latitude's degree. The longitude, on the other hand, was a semi-circular arc on the large circle connecting the north and south poles on the surface of the planet. The lengths of any two longitude lines were equal and they