Looking at Situ Yan suddenly becoming so shy and excited, Jiang Feng was amused. She understood it instantly; it seems she's indeed a "well-versed" female action officer...

"Do you know what this means?" Jiang Feng asked with a smile.

"Nonsense! Why are you suddenly acting disgusting instead of properly looking at the photo?" Situ Yan's face turned red as she lightly kicked him under the table.

"What are you thinking? I'm helping you analyze the case!"

Jiang Feng was speechless. It was clearly her imagination running wild, yet she was blaming him: "Take a closer look at this photo. The arm in the picture has three fingers with nails left, but the index and middle fingers are bare. Combine this with my gesture, and can't you figure out the identity of the deceased?"

"Wha... what do you mean?"

Situ Yan's cheeks were flushed. Her mind was full of inappropriate thoughts, having no idea what Jiang Feng was trying to express.

"It's quite simple. With these details, you can determine the profession of the person to whom this arm belongs." Jiang Feng said calmly.

"Hmm?" Situ Yan trembled slightly, her pupils contracting!

"Your insight, I must admire it."

Jiang Feng pointed at the photo and said, "Look more carefully!"

Situ Yan looked a bit skeptical, but seeing Jiang Feng's serious expression, she realized he wasn't just teasing her with his dark humor.

At that moment, she carefully looked at the photo again: "Judging the deceased's profession from the nails... ah, I got it! You're saying the deceased worked in beauty or hairstyling? Because when washing a client's hair, long nails could hurt them."

Following Jiang Feng's line of thinking, Situ Yan indeed noticed the difference in the fingers in the photo, subconsciously analyzing: "Or perhaps, the deceased was a musician? Because playing the guitar or some other instruments, long nails could be inconvenient."

"..."

Jiang Feng was dumbfounded, not knowing whether she was pretending to be naive or sincerely so: "Are you serious? Beauty hairstylist? Musician? Can't you think properly? If their job required trimming nails, why not trim all five, but instead deliberately leave three? Washing a client's hair with just two fingers?"

"This..." Situ Yan was suddenly at a loss for words.

Indeed, her thoughts were too superficial and one-sided. But she couldn't be blamed; with her usual reasoning abilities, she would have thought deeper. However, Jiang Feng's mischievous gesture earlier completely disrupted her normal logic, leaving her embarrassed and flustered.

"There's another key point, look at the palm of this arm, there are no calluses, and the fingers are fair and slender, definitely not the hands of an ordinary worker, maybe even someone well-off."

Jiang Feng continued to guide her.

"Come on, tell me what you've figured out, don't keep me guessing!"

Situ Yan had lost her patience by now, grabbing Jiang Feng's arm and shaking it.

As her body swayed, her uniform, which she hadn't had time to take off, wrapped around her upper body, swayed along, as if her beautiful figure was developing tremendously.

"Ahem, if I'm not mistaken, this deceased person, during their lifetime, should have been an X service practitioner, commonly known as a male escort, or 'duck'."

Jiang Feng subconsciously withdrew his gaze from Situ Yan's chest, pretending to be calm as he spoke.

"Duck?"

Situ Yan was flabbergasted.

"Yes!"

Jiang Feng sighed and continued, holding his right hand, with his index and middle fingers together: "Didn't you understand what this gesture means? It's only a duck who would..."

"Ah! Stop, stop talking!"

Situ Yan's cheeks flushed red again, hastily interrupting, face as red as a tomato, "I admit your analysis makes sense, alright? You... You sure have a unique perspective, linking this to such matters, hmph!"

"..."

"In short, you're suggesting that if I focus on investigating entertainment venues that have male escorts in the city, we might find something?" Situ Yan asked Jiang Feng after regaining her composure.

"Right, you can try pursuing this direction!" Jiang Feng nodded confidently in his judgment.

"Alright!"

Situ Yan took a deep breath, decisively stood up, and took out her phone to call Niu Tao.

On the call, she concisely summed up what Jiang Feng had said, taking it as her own deduction, then instructed Niu Tao to investigate the clubs with ducks in Binhai City overnight, ensuring there are no mistakes.

"Ducks?"

Upon hearing this, Niu Tao was suddenly a bit dumbfounded, also extremely surprised.

Because the order was too sudden and... it came out of the mouth of the beautiful captain, Situ Yan, inevitably making things a tad awkward...

"Just do what I say, why all this nonsense!"

Situ Yan's face turned red, chiding in a business-like tone.

"Yes!"

Niu Tao gave an awkward smile, not daring to speak further.

In fact, he understood, starting from this angle made the case easier.

Because there were not many entertainment clubs with ducks in Binhai City, making it relatively easy to investigate; ducks were fewer in number compared to their female counterparts anywhere.

The reason being, female service workers generally only serve men, but being a duck is different, ducks not only have to serve women, they often have to cater to perverse men as well... thus, ducks were even more lowly than their female counterparts, with very few practitioners.

Niu Tao had previously compiled statistics, and the whole of Binhai had fewer than ten entertainment clubs with ducks, all of which were relatively large in scale, making it possible to finish investigating all ten in one night.

"Get on with it then, try to confirm the deceased's identity by tonight, I'll be waiting for your news!"

With that, Situ Yan hung up the phone.

Then, she walked back to Jiang Feng's side, lightly kicking his calf, and said with a huff: "Once again, thanks to you, if your clues are accurate, it means you've helped me solve another riddle. I'll surely thank you properly!"

"Why say this to me?"

Jiang Feng said playfully, "You're suddenly being so formal, I'm really not used to it."

"Hmph, you're being quite cheeky now!!"

Situ Yan cast a sidelong glance at Jiang Feng, and then, in front of him, she took off her uniform.

In an instant, she was left wearing just a sleeveless camisole underneath, her skin alabaster and enticing, with an alluring bra and fiery figure, her flat stomach and delicate navel on full display.

"I'll go take a shower first."

Whether intentional or not, Situ Yan's eyes glimmered with a soft allure as she smoothly tucked back a lock of hair: "You're not allowed to leave tonight, you'll sleep here - got it?"

With a cryptic smile, after saying this, she walked, barefoot and snow-white, towards the bathroom.

Jiang Feng sat on the sofa, feeling like he was on pins and needles.