Following Yang Yunyi's voice, Ye Yu found that the other party was squatting in the corner of the cement wall, happily pointing to an inconspicuous position on the wall.

Ye Yuqiang endured the feeling of dizziness, walked over step by step, and found that there was an open dark grid in the position that Yang Yun pointed to. Inside the dark compartment is a black iron plate, and in the center of the iron plate are inlaid with three circular transparent protrusions, which look like indicator lights.

"There should be a sensor hidden here, you see," Yang Yunyi said, gently approaching the exam bracelet on his wrist to ......the iron plate.

"Beep-"

With a crisp chime, the left-most of the three lights suddenly lit up red, but the good times didn't last long, and after just a few seconds, the light began to flicker, and finally fell silent again.

"Huh? I'll take a look......" Ye Yu stretched out his hand, and followed Yang Yunyi's actions and brought his bracelet close to the iron plate.

The indicator light on the iron plate did react again, this time it was the one in the center, but like the previous one, the indicator light still began to flicker quickly after it was lit, and finally went out.

"Why don't we try it together?" Ye Yu thought about it, then immediately stretched out his hand with Yang Yunyi, and approached the iron plate with the bracelet again.

The two red lights in the left and center lit up at the same time, and then after a while, they dimmed together.

"Looks like this thing is designed to be a mechanism that senses each other with our exam bracelets...... Moreover, it requires at least three different bracelets to be activated at the same time. Ye Yu pointed to the indicator light on the iron plate and said to Yang Yunyi. Other words...... I'm afraid that the two of us alone can't do anything, at least one more candidate will come over...... to open this mechanism together. ”

"Now that this place is closed, where did the third person come from! Are we going to be stuck here like this all the time? Yang Yunyi seemed a little anxious, and the rising temperature instigated his anxiety.

"What can we do now...... I can only wait, huh...... Hopefully a third person will come in soon...... Otherwise......" Ye Yu gasped, surrounded by the heat wave, the damp clothes on his body made him feel more and more uncomfortable, so he simply took it off, but even if he was naked, the feeling of being pressed by a stone in his chest still lingered, which made his breathing start to become unsmooth.

No way...... If I continue like this, I'm afraid I won't be able to wait for the third person, and I'll be starved of oxygen......

"Are you alright? Why is the face so bad! Yang Yun saw that the situation was wrong, and hurriedly helped Ye Yu up again, but with a big movement, the pain in his back reminded him of his sense of existence again, and he knew that his back must have been bruised without looking closely, and the situation was not bad.

And Ye Yu's situation was even worse, his gaze had begun to lose concentration, the feeling of suffocation swept over again, and even his hands and feet were faintly numb, and in a trance, Ye Yu suddenly caught a glimpse of a small object beside Yang Yunyi, and a thought crossed his mind in an instant.

"Knife ...... That knife ......," Ye Yu muttered as he pulled Yang Yunyi with the last bit of strength. "The 'Charcoal Blade'...... Give the glass to ......"

"You're going to break the glass curtain wall ventilation?" Yang Yun reacted at once.

Ye Yu nodded weakly, unable to speak.

"The hardness of this knife is comparable to that of a diamond...... Maybe it does! You wait......" Yang Yunyi helped Ye Yu to sit down, and then immediately pulled out the "Charcoal Gold Blade", got up and ran towards the largest glass curtain wall. At this time, the glass curtain wall has been completely shrouded in water vapor, and under the illumination of the external light source, it has become a white light curtain.

"No way, let's try it!"

Yang Yunyi no longer hesitated, and then raised the "Charcoal Gold Blade", and was about to slash at the corner of the glass with all his strength, when a ghostly scream suddenly resounded in the air without warning.

Instantly, there was a lot of wind in the room.

A stream of air swept through the diffuse water vapor, washing the stuffy heat of the room in an instant; And with this air current, Ye Yu suddenly felt that his chest was loosened, and the unbearable feeling of suffocation before was suddenly relieved.

"Whew...... ...... "Ye Yu greedily breathed in the hard-won oxygen, his consciousness was finally out of his trance, and he even had a feeling of escaping death. However, Ye Yu had just come to his senses, and a sudden soft and ill-intentioned female voice suddenly tightened his heart again.

"Oh, what a coincidence~ We met again."

Ye Yu raised his head and looked at the source of the sound in disbelief. In the thinning mist, he saw a familiar figure appear out of thin air in the corner of the room, as if by magic, and was coming towards him.

The delicate shawl curls, the white slim suit, and the seemingly innocent and lovely face were none other than the woman who had "pitted" herself.

"Shinoru?! How did you end up here! ”

Before Ye Yu could speak, Yang Yunyi took the lead. I saw him walk quickly to Ye Yu's side, staring at the uninvited guest in front of him with a vigilant expression. "How did you get in??"

"How do you get in? The secret door came in. Shinoru casually pointed behind her.

"There's a secret door!?"

Yang Yunyi hurriedly looked in the direction pointed by Xiao Lu, and found that a narrow sliding door with a height of one person had opened in the corner of the cement wall at some point. However, before he could be overjoyed, the door closed in an instant, as if sensing this.

Yang Yun ran forward and pushed hard at the position of the sliding door, but found that not only did this position not move at all, but even the crack in the door could not be found, which really made Yang Yun happy.

"Don't think about it, it looks like she's the third person......" Ye Yu smiled bitterly and shook his head helplessly.

Yang Yun also sighed when he heard this, and looked at Xiaolu with a complicated expression.

"What are you doing?" Xiaolu Liu's brows furrowed slightly, her gaze quickly swept around the room and then quickly focused on Ye Yu and Yang Yunyi, and after staring at the two of them for a few seconds, she smiled meaningfully as if she understood something.

"I mean, I can't have strayed into the men's sauna, right? Or rather...... I'm bothering you guys? ”

When Xiaolu said this, Ye Yucai was shocked to realize that he had been stripped semi-shirtless due to the stuffiness, and Yang Yunyi was also untidy, so he suddenly realized something, and was extremely embarrassed for a while, so he hurriedly picked up the clothes next to him and hurriedly put them on.

And that Xiaolu seemed to be watching a play, her eyes swept leisurely over Ye Yu's body unscrupulously, which made Ye Yu feel more and more embarrassed.

"Don't you want to know what's going on now? Then I'll tell you now, you've fallen into the pit. It seemed that he couldn't stand Xiaolu's gaze anymore, and Ye Yu deliberately diverted the topic. There's no way out here, and we're all stuck here unless we open the mechanism. ”

"Organs?" Shinoru finally restrained her teasing expression.

"That's right, a trap that only three people can open." Yang Yunyi slowly sorted out his clothes and explained to Xiaolu what he and Ye Yu had discovered before.

……

"I see, that's easy." Shinoru smiled lightly, then walked over to the trap and held the exam bracelet on her wrist close to the black iron plate.

"Beep-"

Unsurprisingly, the right indicator light in the iron plate lit up.

"Why are you still stunned? Don't come over yet. Shinoru turned her head and urged the two behind her.

Yang Yunyi and Ye Yu didn't expect this Xiaolu to be so happy about this matter, and the two people who reacted quickly stepped forward when they saw this, and reached out to stick the bracelet on it.

The left, center, and right lights lit up at the same time, but the indicators did not flash as before, but turned from red to green in unison, and at the same time, the entire cement wall suddenly began to vibrate.

"Sure enough, it can only be opened by three people......" Yang Yunyi looked at the slowly sinking cement wall and said happily.

"Looks like we can get out!"

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

In the dim aisle, Shen Xiao stared at the black mechanical beetle in his hand, his brows furrowed.

Six of the seven spots on the beetle's back had dimmed, and as the sixth spot dimmed, the mechanical beetle stopped as if it had lost its purpose.

Six of them...... Isn't it already ......?

A deep worry rushed through Shen Xiao's heart, but it didn't help other than bring her anxiety. Shen Xiao tried to stabilize his mind, forcibly suppressed the uneasiness in his heart, and decided to act according to the established plan first.

Either way, we need to meet them quickly!

Shen Xiao made up his mind, and immediately turned the beetle over, and pressed a mechanism on the beetle's abdomen. With the triggering of the mechanism, the beetle also began to change its form, and finally evolved into a ring wrench, clinging to Shen Xiao's left thumb.

At the same time, the vision of Shen Xiao's left eye also began to make subtle changes.

The surrounding scenery began to blur, as if it were covered with a gray mist; Not only that, but in Shen Xiao's left eye, everything began to emit a faint spectral color.

Fortunately, this beetle is equipped with an infrared thermal detector......

Shen Xiao thought and looked down at his palm. In the left eye, which has been projected by the retina, his hand can no longer see the details, and all he can see is a silhouette and its orange-yellow glow.

Although people are chasing them now, since they have been following them for so long, they should not be far away, and maybe they can catch up with them, and in such a dim environment, it is obvious that infrared rays are more reliable than the naked eye.

Shen Xiao took a deep breath and raised her head to look at the dark passage ahead, but this sight suddenly made her scalp explode!

I saw a humanoid figure emitting an orange-red light quietly nesting in a hidden corner not far away in a strange posture, not moving.

Someone...... Someone is hiding there!!