Although the newly obtained system devices were great, none of them could help Zhao Yu look for Miao Ying. Looking across the device bar, Zhao Yu thought that there were only two devices that might be useful. One was the Invisible Tracker, and the other one was the Hacker's Command.
The Invisible Tracker was similar to a dog's nose. After putting it to use, Zhao Yu might be able to follow Miao Ying's scent. He would then be able to follow the route that she had taken.
However, Zhao Yu had already used the device, back when he was chasing after Le Chao in the Falling Off Building Case. As for the Hacker's Command, Zhao Yu assumed that the device could search for Miao Ying's information online. However, after he looked into the introduction carefully, he realized that the device could only function on a formulated memory, which was not suitable for the internet.