Just now, Lin Yifan asked Han Meiling to promise herself to him, which really made her angry. She doesn't like Lin Yifan teasing other girls like this at all.

"Alright, alright, I won't be petty anymore in the future."

Lin Yifan conceded, not daring to offend his future wife, the lady.

"Who exactly is she?"

"A former neighbor in the same apartment." Lin Yifan answered.

"What secrets are there between you two?"

"None at all!"

"Then why are you so nice to her?"

"Before, I took over a company, but due to lack of funds in the early stages, I couldn't afford many streamers, and Miss Han was a very popular streamer with a large following. To make money, I invited her to join me in building the business. She didn't ask for much, just switched over and signed with my company right away.

With her arrival, the company's live streaming platform became incredibly popular, and the company's profits gradually increased. It's precisely for this reason that I had the money to assist the Antian Group and save An Qi's family from crisis; so I owe her a favor and must repay it." Lin Yifan replied.

"For a powerful Cultivator in the Divinity Transformation Realm, why would she serve as a streamer in a second-rate city?"

"That's what you don't know. She was sent as an undercover agent from the Emei Sect to steal the 'Ice Jade Sword Technique' from Master Xuji. Since my rented apartment was run by Master Xuji, she infiltrated here using her identity as a streamer to deceive Master Xuji's eyes.

However, Master Xuji was already on guard, so she never got the chance.

When the plot was discovered, she escaped back to the Emei Sect and was never heard from again until just now when she appeared in my view again."

"So that's how it went down? Nothing else happened?"

"What else do you think could have happened? Let me tell you, I'm still a virgin. Do you want to broaden my horizons?"

"You wish!"

Although Lin Yifan's words were questionable, Xiaofang believed that Lin Yifan wouldn't deceive her on such matters, so she reluctantly chose to believe him.

After resolving Xiaofang's doubts, Lin Yifan took her back to the place where they rescued Han Meiling.

He wanted to examine exactly what part of the Bloodthirsty Maniac from the Western Bloodsucking Sect was manipulated, turning him so violent.

If he could unravel this critical point, it would help subdue and save Zhou Jiajia, making it a crucial investigation.

Xiaofang didn't understand why Lin Yifan wanted to return to this place. Was he still pining for Miss Han's scent? So she asked, "Yifan, why are you doing this?"

"Jiajia was also captured for experiments and might end up as a mutated Cultivator like this, so this deceased mutated Cultivator holds great research value. I need to find a breakthrough point to better subdue and save Jiajia." Lin Yifan responded.

Xiaofang suddenly understood, realizing her narrow-mindedness.

"Ah! Why am I so jealous? Why can't I trust my man?"

She began to blame herself.

Coming to the side of this dead crimson vampire, Lin Yifan squatted down for a careful study.

This Bloodthirsty Maniac was killed by a sword that pierced through his head, so the head was likely damaged. He could only study the other parts of the Bloodthirsty Maniac's body.

This kind of Bloodthirsty Maniac has a lot of hair, much longer than an ordinary person; in addition, its two sharp teeth, resembling zombie teeth, can easily pierce through a human body, just thinking about it is chilling.

Moreover, these Bloodthirsty Maniacs have a lifeless expression, like they've lost their souls—a classic zombie look. Once triggered, it becomes uncontrollable.

On the surface, nothing could be seen, so Lin Yifan released his Divine Sense, entering the body of this Bloodthirsty Maniac for a careful investigation.

After exploring, he discovered that this kind of mutated Cultivator also lacks a Dantian. Their Cultivation Power might come from some substance or a segment of genes.

Even though this Bloodthirsty Maniac had absorbed a lot of human blood, no excess blood was found within its body, as if the blood absorbed had vanished into thin air.

Lin Yifan knew that the Cultivators of the Bloodsucking Sect cultivate through blood.

Hence, this kind of Bloodthirsty Maniac might have inherited the Bloodsucking Sect's Cultivation Method, using large amounts of Cultivator blood to advance their Realm and enhance their power.

The future Gene Warriors of the Shadow Organization store their Cultivation Power in the brain. Lin Yifan was curious about where the Cultivation Power of these similarly Dantian-less Bloodthirsty Maniacs was stored.

After investigating the brain of this Bloodthirsty Maniac, he found no Spiritual Power fluctuations there. Instead, he sensed faint Spiritual Power fluctuations in a pool of blood.

Hence, he formulated a daring hypothesis: "Could it be that these Bloodthirsty Maniacs store their Cultivation Power in the blood?"

"But if so, how do outsiders control them? Could it be by using the blood to govern the entire body, thereby achieving control?"

Regardless of whether this is the case, at least there's a research direction.

With a breakthrough point, Lin Yifan focused on studying the blood of the Bloodthirsty Maniacs.

Gradually, he discovered a special substance in this unusual blood, a substance absent in normal human bodies but present in these Bloodthirsty Maniacs.

Lin Yifan speculated that because of this substance, Bloodthirsty Maniacs could possess Cultivation Power, rapidly advance their level, and be controlled.

He tried to extract this substance from the blood but found it impossible.

This substance had already merged with the blood, meaning that unless all the blood was replaced, it couldn't be removed.

But could it really be that simple?

Lin Yifan didn't think so.

The Cultivators of the Bloodsucking Sect weren't fools and must have devised countermeasures; this was likely a Blinding Method.

Indeed, when further investigating the source of this substance, he found that these special substances all originated from the marrow in various parts of the body.

It's well-known that after reaching adulthood, blood is mainly produced by bone marrow, and this special substance has already gone deep into the marrow. Unless all bone marrow is replaced, it can't be eliminated.

However, replacing all the bone marrow would mean that this body is no longer yours, and with modern technology, it's simply impossible.

At that moment, Lin Yifan was extremely frustrated, unsure of what to do.

There has to be a way; he just hasn't thought of it yet.

Lin Yifan decided to take a break after this century-long battle to study how to safely wake up Zhou Jiajia.

Seeing Lin Yifan open his eyes, Xiaofang leaned her face over, curiously inquiring, "Yifan, how is it? Did you find the source of this 'disease'?"

"I found it, but it's a bit tricky, and I can't think of a solution for now." Lin Yifan answered.

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