Every day after the experiment began was unbearable. Without sedatives, Zhou Siyu was driven to madness by various hallucinations every day, unable to distinguish whether the scene in front of her was real or fake, or whether the people in front of her were real or not.

After attacking several people, he still had Lin Ling bind him.

On the first day without the inhibitor, under the continued effect of the Kao virus, Zhou Siyu released a large amount of pheromones, successfully knocking herself unconscious and plunging into a hallucination that lasted for a week.

After waking up, he started vomiting and having diarrhea again, and fell into a coma again while having a persistent high fever.

In just one month, he became skin and bones, barely surviving on intravenous nutrition. His wrists were also worn raw, with the bandages digging into his flesh.

"Si Yu, Si Yu..."

Lin Ling's urgent voice lingered in her ears, landing lightly like a feather. Zhou Siyu slowly opened her eyes, her amber pupils filled with confusion and doubt.

Is what he's seeing now the person he's imagining, or the real Lin Ling?

"Siyu, open your eyes and look, it's me."

A familiar yet unfamiliar voice rang in her ears, the straps binding her hands were loosened, and Zhou Siyu, feeling utterly powerless, fell into a warm embrace.

"Yu Wei, Yu Wei, is that you...?"

Zhou Siyu shouted in her heart, but her parched throat could not utter a sound. She could only silently call out Yu Wei's name.

"It's me, it's me, I'm sorry... I'm sorry..."

Yu Wei held Zhou Siyu tightly, continuously releasing pheromones to guide him out of the illusion.

The warm liquid fell on her face, quickly turning cold. Zhou Siyu was stunned for a moment, then laboriously raised her hand and gently touched Yu Wei's face, silently saying, "You cried."

"Don't worry about whether I cry or not..."

Yu Wei sobbed uncontrollably, gently holding Zhou Siyu's arm. Looking at the bloodied and mangled wrist, her heart clenched with pain.

The researchers gently placed the tray down, glanced at the two people, and quickly left the room.

Zhou Siyu's wrist wound was already quite serious, but because no one knew when he might go berserk, no one dared to take the risk.

"I'll treat your wound; it will hurt a little."

Yu Wei kissed Zhou Siyu's cheek, untied the restraints on his ankles, and let him lean against her.

The cold alcohol touched his skin, and Zhou Siyu couldn't help but shiver. Yu Wei thought he was in pain, so he hugged him and comforted him for a long time.

After finally cleaning up the bloodstains, Yu Wei trembled as he picked up the tweezers and carefully removed the fibers left in the wound. The feeling of the cold tweezers moving inside the flesh was very uncomfortable, and Zhou Siyu couldn't help but move, closing her eyes and biting her lip to stop herself from crying out.

After treating one hand, Yu Wei breathed a sigh of relief, ignoring his soaked back, took the knife, cut open his palm, and pressed the blood onto Zhou Siyu's wound.

"Are you crazy? It's infectious..."

Zhou Siyu's eyes widened as she tried to pull her wrist away, but Yu Wei held it tightly.

"Don't worry, the Kao virus won't affect me at all." Yu Wei gently patted Zhou Siyu's arm, his dark eyes filled with heartache. "The Kao virus and the Ghost Hand Vine won't harm me."

Zhou Siyu shook her head to indicate disbelief, then opened her mouth to indicate she wanted to drink water.

Yu Wei fully understood what he meant. He told the person guarding outside, and feeling that Zhou Siyu's wound had almost healed, he took his hand away and waved it in front of Zhou Siyu's eyes, "See, nothing will happen."

Just as Zhou Siyu was about to say something, the water delivery person opened the door. Yu Wei turned around, took the water, said thank you, and then picked up a small spoon to feed Zhou Siyu the water.

My throat hurt so much that I couldn't swallow, and most of the water just dripped from the corners of my mouth.

Yu Wei lowered his eyes and looked carefully at Zhou Siyu. He then recalled Lin Ling's words: Zhou Siyu's throat was severely damaged, making it difficult for him to swallow and potentially preventing him from speaking in the future.

Looking at his wrist, now completely healed, and then at the remaining half-cup of water, Yu Wei made up his mind. He cut his palm, sucked out a mouthful of blood, lifted Zhou Siyu's chin, and forcibly forced the blood into his mouth.

"Waaaaah!"

Zhou Siyu's eyes widened. What's wrong with Yu Wei? Why is he feeding him blood?

Yu Wei's blood had no bloody smell at all; instead, it carried a unique herbal fragrance. The blood slid down his throat, feeling cool and refreshing.

Zhou Siyu licked her teeth with lingering satisfaction. You know what, you really have to believe it, Yu Wei's blood worked faster than any magic pill. Her throat, which had been burning just now, was no longer painful.

"How did you get addicted?"

Yu Wei chuckled and poked Zhou Siyu's face, then opened his palm again, took another sip, and fed it to Zhou Siyu.

"You have to try to swallow it; you can't just keep it in your mouth."

Yu Wei straightened his legs and let Zhou Siyu sit on them, gently putting his arms around Zhou Siyu's waist.

Upon hearing this, Zhou Siyu tried to swallow, but she swallowed too hard and choked.

"I told you to swallow the blood, not to swallow your tongue." Yu Wei patted his back to help him catch his breath, somewhat amused and exasperated. "No one's going to take it from you, so don't rush."

Zhou Siyu coughed until tears streamed down her face. With red and swollen eyes, she glared at Yu Wei, looking so wronged and pitiful that it was hard not to feel sorry for her.

"I shouldn't have yelled at you." Yu Wei quickly apologized, cut his palm, and handed it to Zhou Siyu. "I won't feed you this time."

Zhou Siyu stared at the bright red blood in Yu Wei's palm like a bloodthirsty beast, licked his lips, pressed Yu Wei's hand to his lips, and greedily sucked the blood.

Yu Wei frowned slightly as his warm, damp palms were occasionally bitten by teeth, much like the feeling of being bitten while feeding a kitten. He steadily supported the back of Zhou Siyu's head with his other hand.

Humans have a bloodlust instinct, especially the active Ghost Hand Vine cells in Zhou Siyu's body.

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