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Nangong Lingyan's face was a picture of shock and disbelief, as the Fifth Sister before her felt so unfamiliar, so eerily unsettling.

After a brief period of stunned silence, Nangong Lingyao glared at Nangong Yelin and the other three, with hatred and fear etched deep in her eyes.

Things had turned out just as she had expected. If they couldn't resolve the issues between Nangong Lingyao and her family, they would both end up hurt, Yang Mengchen spoke lightly, "Sister Lingyao, do you really think that so-called Sister Mu sincerely cares for you?"

"What do you mean by that?" Nangong Lingyao turned to look at Yang Mengchen, the hatred and fear in her eyes slightly lessened. If it weren't for how her Ninth Sister had treated Sister Mu, she might have still had a fondness for this gentle and affectionate Ninth Sister.

Yang Mengchen smiled, "Sister Lingyao, do you dare to make a bet with me?"

"Bet what?" Nangong Lingyao couldn't help but ask.

"To bet that this so-called Sister Mu isn't truly fond of you, but harbors ulterior motives, scheming to ruin your relationship with your family, how about it?"

Nangong Lingyao wanted to retort, but faced with the composed Yang Mengchen, the words she intended to say just couldn't come out, and she felt inexplicably panicked inside.

"What's the matter? Sister Lingyao, don't you dare to bet?" Yang Mengchen said with prolonged significance, "Since Sister Lingyao has always relied on and been close to that Sister Mu, shouldn't you have confidence in her? Or is it that you have already sensed Sister Mu's ill-intentions but have been deceiving yourself all along?"

In the end, Nangong Lingyao was a simple-minded girl and couldn't stand being challenged like this by Yang Mengchen, and she immediately agreed to the bet.

"If Sister Lingyao loses, you will come to my house and stay for a while. If I lose, we will agree to any condition you propose. How does Sister Lingyao feel about this?"

"It's a deal."

"To prevent any more complications, we must inconvenience Sister Lingyao for a while," Yang Mengchen said, then swiftly threw a Black Needle that sealed Nangong Lingyao's voice: "Sister Lingyan will stay behind to take care of you, while we go see who this Sister Mu really is." She then rose and headed for the living room.

Long Xuanmo and Nangong Lingfei followed her out.

Looking at his Fifth Daughter, Nangong Yelin, supporting his wife who bore a face of sorrow and desolation, slowly made his way to the living room, holding his wife's hand tightly the whole time, silently supporting her.

After gently closing the door to the bedroom, Yang Mengchen sat down in the seat of honor before calling out, "Hai Tang, bring her in."

Before long, Hai Tang entered, dragging the still unconscious Sister Mu, showing no courtesy as she threw her onto the ground, causing Sister Mu to groan in pain, yet she remained unresponsive.

Yang Mengchen shook her head at the sight of Hai Tang, who appeared gentle and frail but was actually quite violent.

She stood up, walked slowly over to Sister Mu, knelt down, and after a careful examination, she extended her hand behind Sister Mu's ear and slowly peeled off a thin layer of skin, revealing a face that was somewhat pale, but still charming and delicate.

She had noticed two days before that the skin behind Sister Mu's right ear had curled up slightly. If not looked at closely, it was impossible to notice, and she had guessed then that Sister Mu must have changed her appearance using disguise techniques. She had intended to remind Nangong Lingfei afterwards.

However, she hadn't expected that today Nangong Lingfei would suggest keeping Nangong Lingyao behind, leading to a series of events.

```

"Qiu Yue?!" Even Nangong Yelin, always composed and restrained, couldn't help but lose his color when he saw that face clearly.

Yang Mengchen turned back and asked, "Is Uncle Nangong certain she truly is Qiu Yue?"

"Qiu Yue has been by my side for fifteen years," Nangong Yelin asserted confidently. "Though this person appears slightly aged, I am sure it is indeed Qiu Yue without a doubt."

The other three changed their expressions slightly, realizing that the facts were as Yang Mengchen had guessed—Qiu Yue was not dead and had returned to Nangong Mansion to carry out disgraceful deeds under the guise of another.

Holding the facial mask, Yang Mengchen glanced at Hai Tang, who then released the acupoints of Sister Mu, who was actually Qiu Yue.

After a gentle reminder, Qiu Yue slowly opened her eyes and saw everyone looking at her coldly, especially that calm and handsome man whose profound gaze was like ghost flames from the depths of the netherworld. Qiu Yue couldn't help but tremble all over, as a bone-chilling coldness quickly spread from her feet to her head.

Shaking the facial skin in his hand, Yang Mengchen said with a half-smile, "Should I call you Sister Mu, or Qiu Yue?"

Upon seeing the facial skin, Qiu Yue knew her secret was exposed, but instead of fear, a fierce determination took hold. She stared fixedly at Yang Mengchen and said through gritted teeth, "No wonder when I first laid eyes on you, I felt an evil aura about you. I never expected you'd truly be a monster... Ahh..."

With a sweep of his right hand, Qiu Yue's body, as if following a parabola, struck the solid wall and then fell heavily to the ground, spitting out mouthfuls of fresh blood. Her complexion instantly turned ashen and pale, trembling like a fragile leaf in the wind, while Long Xuanmo's expression was sinister, his icy tone as piercing as a thousand miles of frost, chilling Qiu Yue to her marrow.

"Dare to show her the slightest disrespect again, and I swear I will flay you alive!"

Yang Mengchen's face was as calm as still water, yet ripples stirred in his heart. After steadying his spirit, he gestured for Hai Tang to bring Qiu Yue forward and, looking down at her twisted and gruesome face, he said, "While Sister Mu was alive, you peeled off her skin and cruelly murdered her, did I get that right?"

"That's right!" At this point, Qiu Yue saw no use in hiding anything and bluntly confessed, "I needed to get close to Yelin, to take revenge on Meng Huiru, and I had to find the most suitable identity. Sister Mu was the person Meng Huiru trusted and valued the most, so I chose her;

Although it was the third time I had killed someone, it was the first time I did it with my own hands. Watching Sister Mu's eyes filled with terror and despair, seeing the knife slowly carve her skin off, leaving behind nothing but a bloody mess, I didn't feel scared. Instead, I felt an unprecedented satisfaction. Haha!"

Yang Mengchen had undergone several skin graft surgeries in his previous life, but even then, hearing about Qiu Yue's deeds made him frown.

The rest of the party was visibly shocked. The way they looked at Qiu Yue was as if they were seeing a ghost.

Back then, Qiu Yue would have been only in her twenties, and yet she committed such a heinous act—it was more vicious than that of serpents and scorpions.

In the bedroom.

Nangong Lingyan's face was pallid, her body involuntarily trembling, while Nangong Lingyao's gaze was vacant and dull, filled with regret and sorrow.

"Who were the first two people you killed?"

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