As the founder of the Psychological Society and someone who works in psychology and mental health fields in reality, Old Zheng could be said to possess a certain degree of professionalism and authority when it comes to assessing whether someone's brain has problems.

Lin Yu had always respected the opinions of professionals.

After all, as an Actor, Lin Yu often needed to portray characters from various industries and different backgrounds.

Miners, fishermen, farmers, monks, beggars, office workers...

To authentically recreate these roles, Lin Yu would frequently consult relevant video materials, and even personally observe or ask people in those professions.

During this process, Lin Yu developed a habit of respecting others' "professionalism" and "expertise": because only by personally delving into those unknown fields can one truly understand what it means to "know what you know."

The theories mastered and the experiences summarized from day after day of professional study and practical work are realms that ordinary people simply cannot access.

There are four common knots for tying things on a ship, at what level of water seepage in a mine you must run for your life, what oil temperature fries things through and what temperature fries them crisp...

If you're not in the industry, even if these are explained, it's hard for an outsider to truly grasp them clearly.

Therefore, Lin Yu greatly respected the diagnosis given by Old Zheng, who was a suspected psychiatrist.

"What aspect of her brain is problematic?"

Lin Yu asked seriously.

Old Zheng casually explained, "When she's alone, she's constantly talking to herself at a very fast pace. And you haven't been separated for long, only two days have passed, so this isn't a hallucination caused by prolonged isolation or stress—since she's a Second Tier player, the current difficulty of this dungeon wouldn't induce hallucinations of this degree in her either."

"Moreover, when she's talking to herself, it's not like your occasional self-talk to organize your thoughts—her tone has very obvious and intense emotional fluctuations, and the content of her speech also seems to be emphasizing something to herself."

"So, she likely has some kind of 'obsessive' personality disorder, accompanied by issues of emotional excitement."

"Judging from these symptoms, my preliminary diagnosis is that she might have mania or bipolar disorder. She needs to take some sedative medication. If there's a tendency towards harming others, I recommend hospitalization for observation and some more effective interventional therapy."

Old Zheng seemed like he hadn't practiced his "profession" for a long time. Prompted by Lin Yu's question and with a case like Fern right there to analyze, he actually became quite enthusiastic, immediately launching into a detailed analysis.

"No need to tell me about the treatment plan. We can't admit her right now anyway... In short, are you sure it's a manic tendency?"

Lin Yu countered Old Zheng.

Being questioned like this by Lin Yu, Old Zheng instead became more cautious.

"If you want a definitive conclusion, I certainly wouldn't dare give one without a direct consultation. Moreover, her symptoms aren't really typical... they're even a bit strange."

"For example, when you spent the night with her before, you probably didn't notice she had trouble sleeping or anything like that, right?"

"And this excitement of hers also appeared suddenly!"

"So, I can only base it on the fact that she's inherently a Fraudster, so she naturally likes to conceal her behavior..."

Listening to Old Zheng's analysis, Lin Yu always felt something was still off.

But Lin Yu believed the general direction was correct.

Fern's abnormal behavior now could indeed be explained by this person inherently having "abnormalities."

After all, why this person had always been "deceiving" and "hiding," Lin Yu still hadn't figured out.

Being a Fraudster doesn't necessarily mean you have to deceive people!

Many of her deceptive acts seemed to have almost no benefit, as if driven by some kind of instinct.

The last player Lin Yu saw whose behavior was so highly unified with their Class was Li Nian!

That Thief really did enjoy stealing things for fun—but Fern's situation was different from Li Nian's.

Because Li Nian genuinely enjoyed "stealing things."

This conclusion didn't even require Old Zheng's diagnosis;Lin Yu could reach it himself: Li Nian absolutely had a psychological disorder similar to "kleptomania."

However, this theory couldn't be used to explain Fern.

Lin Yu didn't get the feeling that this person enjoyed the process of weaving "lies" and "deceiving" people...

She didn't even have that sense of pursuing the truth that Fu Luo, as a Detective, possessed.

Therefore, the "false identity" she was concealing must have had some specific purpose.

It was just that Lin Yu had never uncovered what exactly that purpose was.

Perhaps her previous behaviors shared the same origin as the current abnormal actions Old Zheng attributed to a "manic tendency."

Only, it wasn't "mania" either!

As for what it actually was...

That remained to be observed.

Of course, Lin Yu had a premonition that, given Fern's current state which was indeed very easy to mistake for "mania," he wouldn't have to wait long.

Sure enough...

The next moment, Lin Yu, crouching in the tree, felt the earth tremble.

"Rumble—"

Those withered trees swayed and fell to the ground. Accompanied by dull thuds, the ground gradually bulged and cracked!

Anyone witnessing this scene could deeply understand what was meant by "the earth dragon turning over"!

The trembling earth heaved, as if there truly was a hidden dragon swimming underground.

"What a huge commotion, this destructive power... No wonder Fern dared to go find Twenty directly. Besides recklessness, she must also have some confidence!"

Whether the commotion was caused by Fern or forced out of Twenty, it was evident that Fern's strength was extraordinary.

Based on Lin Yu's estimation, if Fern truly was Second Tier as she claimed, she probably wouldn't lose to the strongest Second Tier he had seen so far, the Free Alliance's Designer, Wang Yuyang!

Brother Wang was a fierce individual who could pin the fully-equipped, mecha-piloting Stiller, complete with logistical support, to the ground and beat him up.

"Excellent, Fern is performing even better than I imagined..."

Lin Yu murmured softly, his gaze fixed tightly on the continuously heaving, trembling ground.

He clung firmly to the tree trunk, his expression unprecedentedly focused.

Because now, as the situation became increasingly "favorable," Lin Yu was becoming more and more aware...

He genuinely seemed to have the possibility of killing "Twenty."

"Boom!"

A spot on the ground that had bulged and cracked suddenly exploded. A young man wearing a loose jacket, his body as light as a cat's, was flung into the air along with rocks and dirt.

Beside him was a genuinely meowing, real black cat.

Both the man and the cat looked utterly disheveled in mid-air, covered in numerous long, thin, bleeding wounds and coated in dust and grime.

Even though this was their first meeting, Lin Yu was quite certain...

This young man was "Twenty"!

And Twenty, having adjusted his posture in the air, also spoke up, seemingly furious.

"May May, don't push people too far!"

This statement genuinely startled Lin Yu.

But soon, noticing that Twenty was glaring fiercely downward while cursing, Lin Yu couldn't help but chuckle with delight.

"This guy has mistaken someone for me."