The star map was one of the important tools for space travel, and following the marks on the star map; the ship could avoid terrible electromagnetic storms and bypass hidden black holes.
Han noticed, the star map used by the Ancient Maple Leaf family was quite different from the Alliance version. It could find the shortest route between points, thus speeding up the travelling progress. It hadn't been even one day since Han embarked on the transport ship, and they had already entered the Headhunter Star System's periphery. If the route was calculated in accordance with the Alliance's version of the star map, then the voyage would take at least two days.
The Ye Family that had been operating long term outside of the Milky Way clearly understood this wild space better than anyone. Han asked Ye Jincheng for the Ye family's version of the star map, and Ye Jincheng had casually given this precious data to Han because in his eyes, how could Han be considered an outsider.