It was an unknown number that sent the message, but Ye Shuang knew it belonged to the workshop that Lawyer Lin represented. Since it was a workshop, it had people who specialized in different fields. However, looking for a missing person was hard to define, so it would normally be given to the person who was most free and convenient.
It just so happened that there was one member of the workshop who was out on a mission near the district that Ye Shuang mentioned, so this case naturally fell on his lap. The minute the contract was signed, the person received the details and hired a cab to go to the location given. By then, the project manager was getting off from work. The man tailed the manager and eventually found Chen He's mistress.