Du Ming pulled Li Yulan through a crowd on the second floor and went straight down to the first floor, exiting the underground casino.

  As soon as they stepped out of the gate, Du Ming stopped in his tracks and gave Li Yulan a once-over from head to toe, making sure she didn't have any visible injuries. He asked with concern, "How are you? Are you hurt?"

  Li Yulan shook her head and said, "No."

  Du Ming said, "That's good, as long as you're fine."

  Li Yulan said guiltily, "Mr. Du, this time it's my fault, it was all my mistake that led to the failure of the mission, not only did I not get any results, but also dragged you here to rescue me personally."

  Du Ming smiled and shook his head, saying, "It's okay, you're now considered my subordinate, but during the training phase, this task was also meant for you to practice with. I won't blame you even if you failed, just practice a few more times and you'll be fine. Later on, when it comes to real tasks that can't afford to fail, you'll be able to complete them perfectly."

  Li Yulan nodded vigorously and said, "Yes, Mr. Du!"

  But soon she lowered her head and said dejectedly, "However, the task you assigned to me this time is to investigate the underground casino and see if it's related to the Luo Ronghui case. I haven't found anything yet, what should I do?"

  Du Ming smiled mysteriously and said, "Yes, you didn't find out, but there's still me. Who says this task isn't completed? Don't worry, let's go back, I'll show you what I've investigated."

  Du Ming and Li Yulan left, the underground casino boss Zhu was beaten by his own henchmen for half a day, finally broke out of the encirclement, furious, shouting "What are you all doing! See who I am!"

  The thugs finally came to their senses and realized they had been beating up their own boss for half a day. They were all scared, shrinking back with their heads hung low, not daring to speak.

  Mr. Zhu was furious, waving his arms and shouting, "You bunch of good-for-nothings! I'm supporting you all, what can you do?! Get out of my sight!"

  The thugs all slunk away in fear, and Old Zhu stormed back into his own office.

  Mr. Zhu frowned and looked around, thinking that Du Ming had come all the way without finding any clues about the office?

  Mr. Zhu couldn't believe it and searched around but really didn't find any traces of someone having looked for it.

  Then Boss Zhu's gaze fell on the oil painting on the wall, walked to the front of the oil painting with some worry, lifted the frame, and saw that the wallpaper underneath was still flat, slightly letting out a breath.

  Then Mr. Zhu tore open the wallpaper, pulled out the movable wooden board under the wallpaper, entered the password of the safe and opened the door, took out a mobile hard disk and documents from inside.

  Mr. Zhu hastily flipped through the stack of files, ensuring that all contents were complete and had not been tampered with, before letting out a long sigh and putting the mobile hard drive and files back.

  Mr. Zhu relocked the safe, pasted the wallpaper back on, and put the oil painting back in its original position. He hummed a tune, speaking to himself with satisfaction, "Hmph, what Overseas Military King Du Ming, came to investigate and left empty-handed, didn't find anything? Luckily my important documents were hidden deeply, he won't be able to find our clues."

  On the other hand, Du Ming had already taken Li Yulan back to Li Yulan's villa.

  As soon as they entered the villa, Du Ming rushed to Li Yulan and said, "Is there a more advanced computer? Let me use it."

  "Of course," Li Yulan hastily replied, "Mr. Du, come with me."

  Li Yulan took Du Ming to her study on the second floor, where a desktop computer was placed on the large desk. Li Yulan pointed at the computer and said, "This is the best configured computer I have here, I don't know if Mr. Du can use it?"

  Du Ming pressed the power button, and the computer quickly booted up. He shook the mouse and said with satisfaction, "This computer is not bad, I'm getting used to it."

  As he spoke, Du Ming bent down and took out a mobile hard drive from his backpack, connecting it to the computer.

  Du Ming's mobile hard drive was encrypted, of course. He entered his password and opened the files inside.

  Li Yulan curiously came over, watching Du Ming's ten fingers flying quickly on the keyboard, and soon one after another file window popped up on the screen.

  Du Ming browsed through the files one by one, many of which contained detailed information about underground casinos and gambling dens, as well as some client information.

  There is also some information about thugs, but they are just small-time hoodlums that Du Ming doesn't care about.

  Suddenly Du Ming's fingers stopped moving, staring at one of the file windows, and the first thing he noticed in the file was the two words "overseas".

  Du Ming read through the documents, most of which were task records received by this underground casino from a foreign force and then released to the organization of the foreign force in China.

  Du Ming searched the folder again and found the information of the contact person related to this underground casino, with only a code name "West Wolf" and no photos. The contact method was an email address.

  Du Ming furrowed his brow, and after searching for a while, he found the underground gambling den's contact, which was the organization of this external force within the country. The name of the leader of the organization surprisingly appeared to be Qi Changrui.

  Du Ming slapped the table, "It's really him!"

  Li Yulan was startled and asked, "What's wrong? What is it?"

  Du Ming didn't answer Li Yulan, but pointed at the name Qi Changrui and asked Li Yulan, "Qi Changrui, do you know this person?"

  "Hmm," Li Yulan furrowed her brow and leaned in closer to the computer screen, taking a look at the name before rolling her eyes back to recall for a moment, then said, "I've heard of this person, we should have met a few times, but not very familiar. He's the chairman of the Jin Qi Group, with a pretty good family background, and his position in the business world has been rising rapidly recently. It seems like our Li family has some dealings with them, but I don't usually get involved in our family's affairs, so I don't really know him."

  Du Ming nodded, and Li Yulan asked in confusion, "What? Is this person also related to the outside world? Is Qi Changrui the behind-the-scenes boss of this casino?"

  Du Ming shook his head and said, "No, Qi Changrui is not the mastermind behind the scenes. On the contrary, he is a small brother under the mastermind. One of my police friends said that Qi Changrui's group is involved in organized crime, and now it seems to be true. Moreover, he is the underground line of this foreign force, that is, the activity organization arranged by the foreign force behind him in the country. It seems," Du Ming slightly narrowed his eyes, "I really need to investigate the black, evil, and gangster organizations in Donghai."