"Tell me the specifics."

"Last time you told me to go say goodbye to Sir Zhang and the others, so I did." Kang Zhirong cleared his throat and then spoke slowly, "I was going to leave after helping you with the paperwork. But Sir Zhang suddenly suggested that I make some videos for him and their Department, and promote them using our account."

"Why didn't you tell me?"

"I called you, but your phone was unreachable that day. I had no choice but to call Director Zheng instead," Kang Zhirong quickly explained. "Director Zheng said it was perfectly fine. He felt that Sir Zhang appearing on our video channel would demonstrate his recognition of our hospital's efforts with the video channel, and also serve as a statement regarding the previous incident. So he had me agree, and emphasized that I should do a good job filming. I had to film during the day and then edit and upload videos at night, so I forgot to call you."

Du Heng was a bit dazed. "Did you call me?"

"I did. I called you on the third day after you returned."

The third day? Du Heng thought about it. That day he went back to the mountain. There must have been no signal up there, so he didn't receive the call.

However, this wasn't a major issue. The thought passed quickly. "Director Zheng was right. Sir Zhang and Qilu don't particularly need the promotion, but the fact that he's willing to appear in our videos means he approves of what we're doing. You did well."

Kang Zhirong chuckled.

"Alright, it's good that you're back. It's been hard on you these past few days." Du Heng stood up and patted Kang Zhirong's shoulder, smiling. "Go home and rest for a couple of days. After you've rested, come back to work. I'll count it as full attendance."

"Thank you, Dean." Kang Zhirong grinned, his front teeth fully visible.

"Okay, go inform Director Zheng, and then head home and rest. Your girlfriend must be going frantic."

"There's still something I need to discuss, Dean," Kang Zhirong quickly added, hearing Du Heng trying to send him away.

Du Heng let out a surprised "Oh?" "Go ahead."

Kang Zhirong coughed again, clearing his throat. "It's like this. Before I left, Sir Zhang mentioned he wanted to send people to our Hospital to learn about the treatment for stroke and pediatric cerebral hypoplasia. He asked me to inquire if we had any conditions or requirements."

This was indeed unexpected news. Du Heng thought for a moment before saying, "Alright. Let me discuss this with the other leaders. After that, I'll contact Sir Zhang myself."

Kang Zhirong stood up. "Dean, I'll be going then."

"You've worked hard. Go on home."

After seeing Kang Zhirong off, Du Heng opened his mobile phone and began to carefully look through the videos from the past few days. Truthfully, he had been so incredibly busy lately that he hadn't really had a chance to properly watch them.

After finishing, Du Heng couldn't help but sigh in admiration; experience truly counts.

Zhang Dewen's videos weren't about diagnosing and treating patients like Du Heng's. Instead, they were genuine medical science popularization.

One video explained tongue coatings—from pale, white, yellow, to greasy. It also detailed how vertical cracks and inverted V-shaped cracks on the tongue corresponded to conditions like damp-heat or cold, and problems with the heart, spleen, or kidney. After watching this video, even an ordinary person could compare and get an idea of whether they had damp-heat or cold-dampness, or if they had a cardiopulmonary problem or an issue with their Spleen and Stomach.

The second video addressed a common concern among men: when to use Six-Ingredient Rehmannia Pill, when to use Anemarrhena, Phellodendron, and Rehmannia Pill, or in which situations to first use Cinnamon and Aconite Rehmannia Pill, followed by Sexoton Pill. The order of use, severity and urgency, dosage, and duration were all explained clearly, without any deliberate obfuscation or making it necessary to contact him directly for clarification.

The subsequent videos featured other doctors from Qilu, who adopted a style similar to Zhang Dewen's. However, their content wasn't as concise or dynamic, being slightly more in-depth and verbose.

Du Heng scrolled through the comments, which were overwhelmingly praiseworthy. Each of Zhang Dewen's videos had tens of thousands of comments. In contrast, Du Heng's own videos, despite having many likes, only garnered a few thousand comments, making the disparity quite striking.

After watching, Du Heng understood. This was likely Zhang Dewen's way of compensating him for the incident with his student, Doctor Guan, but it was also a form of support for Du Heng himself.

So, what should he do about Zhang Dewen's proposal to send people to learn? Du Heng pondered and still felt it was best to discuss it with the others.

「At this time, Wu Shengnan」

Wu Shengnan walked restlessly along the corridor of the detachment, mechanically nodding in response when colleagues smiled and greeted her.

She knew she had been promoted. But when she sat opposite the detachment leader, was informed face-to-face, and then personally witnessed the document being issued, she still couldn't help but feel dazed.

She knew this promotion wasn't earned through her own capabilities. However, she wasn't a moral purist who would, for some principled reason, outright reject it and cause her superiors to lose face. She was neither a naive child nor a moral saint. Naturally, she wouldn't accept it with untroubled ease; she wanted to achieve tangible results. She was determined to prove to everyone that she was capable.

In the First Brigade office, everyone wore different expressions, but no one spoke. The only activity came from those with heavy smoking habits, who chain-smoked one cigarette after another, filling the large office with so much smoke it resembled a fire scene.

The moment Wu Shengnan's foot crossed the threshold of the office, she paused involuntarily, her nose wrinkling slightly. But after only a brief hesitation, she strode in.

She had thought a lot on the way here, rehearsing many things she wanted to say. But now, actually standing in the office, looking at her colleagues—all familiar faces, yet each with a different look in their eyes—her mind suddenly went blank.

Sitting in the car now, she had absolutely no recollection of what she had said or done back in the office.

"Leader Wu, congratulations, congratulations!"

"Nan, congratulations! You have to treat us to a meal."

The young man and Hao Hongxia, who had been keeping watch, congratulated Wu Shengnan the moment she got into the car. They were both new to the team, so it didn't matter much to them who got promoted; it wouldn't be them anyway. Besides, Wu Shengnan was relatively close to them, so they were actually happier about her promotion.

Wu Shengnan was jolted back to reality by their congratulations. After exchanging a few words with a smile, she asked, "Has there been any particular situation these past few days?"

The young man spread his hands. "No, none at all."

Wu Shengnan took a shallow breath, her gaze fixed on the entrance of their target's location. "We can't just keep waiting like this. It's too passive."

The young man's eyes lit up, his spirits instantly soaring. These past few days of waiting had been torturous for him; he was long past his breaking point. Now, hearing Wu Shengnan say they were being too passive, he immediately piped up, "Leader Wu, do you mean we should take the initiative?"

Wu Shengnan nodded. "Instead of waiting by a stump for a rabbit, it's better to lure the snake out of its hole."

Hearing their exchange, Hao Hongxia blinked in confusion. "How do we lure the snake out?"

Wu Shengnan took a deep breath and said, "Have you noticed? Among the murdered girls, their looks varied. Some were attractive, others not. Two of them couldn't even be called pretty—just plain, ordinary-looking individuals. However, all these girls had good, even exceptionally striking figures. And when they were killed, they were all wearing tight-fitting clothes, the kind that really accentuated their bodies."

Hearing this, the young man slapped the car seat. "Exactly! That's it! I remember two of them were wearing black tight sports shorts, and two others were wearing only sports bras." His eyes suddenly lit up. "The last victim wore yoga pants and a short camisole, with her entire waist and abdomen exposed. Leader Wu, are you saying the killer isn't choosing victims randomly, but has a specific type they're targeting?"

Wu Shengnan's eyes also brightened. "That's what I'm thinking."

The young man immediately said, "Leader Wu, are you suggesting we use someone dressed similarly to the victims to lure the killer out?"