Upon seeing the location coordinates, Yan Fei made an adjustment to his estimate of the Assassin Sect's strength. This assassin organization was definitely not simple, and underestimating them could likely lead to severe consequences. After all, no one could ignore an organization that was able to swiftly smuggle a hostage out of the heavily guarded Shanghai and hide them in the remote high seas, 1500 kilometers away from the scene of the crime, within three days.
After the upgrade, the Drone's maximum speed reached Mach 3, which is 3672 kilometers per hour. In a hurry, it would take only about 25 minutes to get 1500 kilometers away. The only issue was that the Drone needed to avoid some of the radar surveillance from The United States of America Navy and Japan Self-Defense Forces, so it needed a bit more time. Even so, it took Yan Fei only 30 minutes to rush to the coordinates from Shanghai.
