The matter of seeing, and how to see, is a very serious academic issue.

Simply put, the world is full of information, but the way to receive information varies among different races.

If we compare the eyes to a radio, then information is like frequencies. For humans, perhaps from the moment they are born, their eyes receive the 92.7 traffic broadcast channel. So naturally, what they see is the information within this frequency. But for ghosts, perhaps they receive the 105.2 music broadcast frequency, so they cannot receive the traffic broadcast frequency. Therefore, humans and ghosts cannot see each other, let alone communicate with each other.

Of course, a very small number of people can switch the frequency their eyes receive between 92.7 and 105.2, which is known as the Yin Yang Eye. When you tune to the former, you receive the traffic broadcast like everyone else. However, when you tune to the latter, you receive the music broadcast.

As an Old God, Duanmu Huai theoretically has the ability to cover all channels, but just like adjusting a radio, except for fixed channels, others only produce "static noise" during the frequency transition. In this process, Duanmu Huai also cannot fully perceive this world. After all, his soul is human rather than that of an Ancient God. For Duanmu Huai, viewing the world through the 92.7 frequency has become a habit, and he rarely chooses to receive information from other channels unless in special circumstances.

This is also why Duanmu Huai cannot lock onto that monster; simply put, it's like tuning a radio but only getting static noise, so it's impossible to precisely determine the other's frequency, and naturally, it cannot be locked on or seen.

Or in other words, Duanmu Huai hasn't figured out whether that monster is on the AM or FM frequency yet…

However, Yotsuya Miko's situation is entirely opposite.

She receives all the frequencies.

In other words, she can see everything on all frequencies at the same time.

This is somewhat like a degraded version of the Golden Pupil. The difference is that Mary's Golden Pupil can directly tell you which channel it is and which station it's from. But Yotsuya Miko's eyes can only receive frequencies without distinguishing them.

Hmm, imagine a radio that can receive all stations and broadcasts them simultaneously, it gives you a headache just thinking about it.

And in fact, Yotsuya Miko herself thinks so too.

She wasn't born with this ability; according to Yotsuya Miko, she inexplicably acquired this power on her way home one day, enabling her to see things she couldn't before. What's more troubling for Yotsuya Miko is that only she can see this, and no one else can.

Yotsuya Miko doesn't know how to deal with it, so she chooses to ignore these things—in fact, most of the time this method is quite effective. When those terrifying monsters realize you can't see them, they won't react to you.

But it isn't always effective.

Some horrifying things even disguise themselves as humans. Yotsuya Miko once encountered something like this; she was resting on a bench in the park when she saw a little boy holding a balloon waving at her. Yotsuya Miko didn't mind and waved back—only for the boy to suddenly transform into a terrifying monster and charge at her.

If not for someone helping her at the time, Yotsuya Miko might have been killed by that monster.

This is why Duanmu Huai believes Yotsuya Miko's eyes are just a degraded version of Mary's Golden Pupil. If she had Mary's Golden Pupil, she wouldn't have been deceived by appearances and could directly see the true form of the other. Like that Pink Terror Demon, at that time everyone, including Duanmu Huai, thought it was a little girl until Mary said it was a pink strange monster...…

From this, it can be seen that such an unstable ability is even more dangerous.

For example now, why does Yotsuya Miko ask this?

The reason is simple: in her eyes, this school is full of monsters.

There are ghosts maintaining the form they had when they died, and there are twisted, inhuman monsters, so Duanmu Huai wants Yotsuya Miko to help him find the monster, but for Yotsuya Miko, it's not too few monsters, but too many!

So... which one do you want to find?

"Are there many?"

"Yes..."

"How many?"

"...I haven't counted, but there are basically a lot everywhere."

"........."

Facing Yotsuya Miko's answer, Duanmu Huai was also speechless.

"Then... the one with a mouth and tentacles?"

The only characteristic Duanmu Huai remembers from the system's reminder during the battle is that the opponent must have a mouth because it bit Mianmu Zuoniao, and also tentacles.

"...There are quite a few."

"........."

"Are there more in the school?"

"No, outside… there are more..."

"........."

Duanmu Huai began to doubt if this clairvoyance was as useful as he imagined?

No matter what, let's conduct an experiment first.

Thinking this, Duanmu Huai once again looked at the girl sitting in front of him.

"So, is there one here?"

"........."

Yotsuya Miko looked at Duanmu Huai and silently nodded.

"Where?"

"........"

The girl didn't speak, silently pointed to Duanmu Huai's shadow.

"...... That doesn't count."

"Then... nothing else."

Yotsuya Miko shook her head.

"Nearby... they've all been eaten."

"Eaten? By whom? You mean my shadow?"

"........"

Silently nodded.

"? What exactly did you see?"

Duanmu Huai knew that his current Profession of the Old Days was linked with shadows, but to him, a shadow was just a shadow, occasionally forming a tentacle or opening an eye or something. But seeing Yotsuya Miko's pale face constantly breaking out in cold sweat, he knew that in her eyes, his shadow was probably not so simple.

Hmm? Wait a minute…

"Let me try, don't move for now."

As Duanmu Huai spoke, he snapped his fingers. Soon, a tentacle stretched out from his shadow, then reached towards Yotsuya Miko. The latter sat on the chair, expressionless, but her hands gripping her skirt trembled constantly. Then Duanmu Huai shifted his thoughts, and the tentacle suddenly burrowed into Yotsuya Miko's body!

"———————!!"

At that moment, Yotsuya Miko involuntarily shivered, but perhaps because there was no tactile sensation, she could still endure it. The tentacle inside her then spread out, "scanning" Yotsuya Miko's information.

This was also a use of the shadow, updating data through scanning, and simultaneously sharing the subject's senses through the shadow connection. Duanmu Huai was curious about how he appeared in Yotsuya Miko's eyes, so he used this move to try it out.

Soon, Duanmu Huai saw two scenes, one in which he viewed from Yotsuya Miko's perspective, and the other where Yotsuya Miko viewed him. In the latter's perspective, the Duanmu Huai sitting behind the desk was just like an ordinary person, however, the shadow extending from him under the sunlight was completely different!

Duanmu Huai could clearly see that his shadow was not the flat silhouette he saw but like a heap of wriggling, black, rotten, and foul-smelling flesh. Thick tentacles intertwined like snakes and kept pulsating while a viscous liquid coated their surface. The ends of these tentacles were mushroom-like, with a black slit in the middle that revealed sharp teeth and eyes within.

It looked very much like something out of an 18+ animation.

Furthermore, through Yotsuya Miko's vision, the tentacle extended into her body had raised veins resembling blood vessels, looking like… ahem.

Duanmu Huai awkwardly coughed, then retracted the tentacle.

Alright, now he understood why Yotsuya Miko was so uneasy.

Honestly, his old form was really disgusting!

Fortunately, Mary's Golden Pupil could directly penetrate the essence. Otherwise, if Mary saw this, explaining it would be hard!

"...Anyway, let's go for a walk and see where those monsters you mentioned are."

After that, Duanmu Huai took Yotsuya Miko out of the counseling room and started wandering aimlessly around the campus. He realized then what Yotsuya Miko meant when she said those things were all eaten by him.

As for encounters with Evil Spirits or Evil Spirits, Duanmu Huai was aware, but since these entities couldn't threaten or harm him, he tended to ignore them. However, his shadow seemed to have a different perspective. Duanmu Huai noticed that as he walked, the tentacles within his shadow would suddenly spring out like startled venomous snakes, wrap around something, and then drag it into the depths of the shadowy mire to be completely devoured.

Some ghosts were torn into pieces and then consumed separately.

It's worth noting that even ghostly monsters didn't always appear on first glance, they seemed to have their own frequencies. Several times Duanmu Huai saw nothing and only through scanning Yotsuya Miko and synchronizing her data could he accurately see things he couldn't easily detect on his own.

In this regard, Yotsuya Miko was like a radar with max sensitivity.

The only downside was that this radar wasn't smart enough to confirm whether the scan detected an F16 or an F22...

Even after circling the entire school with Yotsuya Miko, they couldn't find the mysterious monster, not even in the air raid shelter. Yotsuya Miko confirmed that there was nothing there… it seemed to have fled, after all.

When school ended, Duanmu Huai still hadn't located his target.

Could it be that thing doesn't come out during the day?

Duanmu Huai stared at the sky, then at Yotsuya Miko beside him, who was already pale-faced and trembling, barely able to walk.

Unfortunately, Duanmu Huai didn't plan to stop there.

"You should stay over tonight."

"Huh?!"

Hearing Duanmu Huai's request, Yotsuya Miko was dumbfounded.

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