In the haze, Samusa kept rummaging through her notebook, and after a few minutes, in one of them, she found the exit closing time calculated a few months ago, at that time, based on the climate and time, she calculated the time when the space-time rift to return to the present world was closed, and now the weather has changed, which also means that the time of the exit is changing.

"Let her be quiet, let's go first, Sakuruma, please take care of Saki Saki in the back. "Hades is not very relieved about the team in front, after all, Hanashima Taki and Fujiwara used to be the main combat power in this team, and they were also the key to finding the enemy, now that they are dead, they must strengthen their vigilance around them, and they are about to reach the exit, and nothing can go wrong.

"Aizuki, when was the last time it rained?" asked Sakisa.

"A week ago. ”

Samuzo thought about it seriously and said softly: "A week ago? This is indeed a bit frequent, there have been almost no cloudy days in the past few months, something must have changed." ”

There was more and more handwriting on the notebook, and there were fewer and fewer blank spaces, the book was already full of things, and Samusa had to shrink the words even smaller, carefully calculating the equations written on it, and those large strings of formulas that made her head tingle seemed to be able to be cracked in an instant, and the tip of the pen quickly came up with the answer.

"Aizuki, what day is today?" asked Samusa, who vigorously circled a number on the paper as she looked up.

Sakurama couldn't react for a while, and was stunned for a long time before piecing together the previous days: "If I'm not mistaken, today should be November 27 of Heisei 26." ”

"Is it really today......

"Today?"

"The weather has changed, which has caused the previous time to be brought forward, and if you apply the factors of that time, I am afraid that the last time the exit will be closed is today. Samuzo didn't tell more people about it, just let Yang Xiaokai and Sakuruma hear it.

"Then we'll have to pick up some pace. ”

"Well, if the exit is in the Black Tower, at the current rate, we'll be there by noon. Samusa seemed to have something to worry about, and her expression was solemn all the time, as if she was worried that something unexpected would happen.

After overcoming all the obstacles along the way, the team of only eighteen people finally arrived at the clearing around the city of the Black Tower at noon, where there were no guards or walls like a beehive outside, and at a glance, a black tower soaring into the sky was standing in the middle of the building, and no one could see the top of it, only the clouds that surrounded the end of the line.

"Is this the exit?" everyone opened the obsidian map, and when they saw that their coordinates and the blue diamond shape of the exit almost coincided, their hearts were extremely excited, this is the door to return to the present world, to the old life!

The city is spacious, as if it was built to welcome the humans who can get here, and it is no longer a gray tone, but a palatial palatiality, as if it is really the future, and even the air is more futuristic than the outside.

Approaching the Black Tower, the gate of this Black Tower is carved with countless blue inscriptions, although it is not easy to read, but people understand in their hearts that opening it is an exit back to the present world.

"Finally see it!" Qiu Liang burst into tears of excitement, and ran up the stairs first, standing at the last step of the stairs, looking at the city in the distance and the forest beyond, "We ...... Can you get out of here......"

There were no traps or nuclear-level creatures blocking it, and the gate was not shackled by any shackles, and it was pushed open by the joint efforts of Qiu Liang and Hades, revealing a passage behind it like a blue sea of stars, which exuded a dazzling light and was incredibly beautiful.

"Hey, what are you waiting for!

"Whoosh-"

Just as people were basking in the joy of being able to return to the present world, a black arrow from nowhere suddenly shot through Qiu Liang's palm!

Yang Xiaokai subconsciously looked at Sakurama, there was no second person in this team who used a bow and arrow besides her, but this bow was not fired by her, but a man with glasses standing on the roof of a building in the distance!

"That person is ......" Miyu slowly stepped forward, looking at the man under the dazzling light, with an extremely surprised expression on her face, "Teacher Shangyue?"

"Bastard, I'll kill him first!" Akira summoned the obsidian armed forces in a fit of rage, and rushed towards the building with his bleeding left hand.

Before he could take a few steps, another oncoming arrow slammed into his shoulder! The direction of the arrow was just below the sun, and the dazzling sunlight became the best cover, and Qiu Liang couldn't tell where the next arrow would come from!

All eyes were drawn to Akira and Uetsuki, and no one noticed that the gate of the Black Tower was slowly closing.

"Boom-"

The door of the Black Tower slammed shut, and in an instant the dust flew up, and under the dust, a familiar female voice reached everyone's ears through the mist.

"Haven't you come to your senses in seven months......?

The breeze blew, the dust cleared, and a girl in a black school uniform slashed at the blue inscription on the gate of the Black Tower!

“…… No one was allowed to leave. ”

"Natsu ......" Sakura's pupils trembled constantly, she couldn't believe that the girl standing in front of her was still alive, and for a while burst into tears, she pushed aside the crowd and ran to her side.

"Sister!"

"Summer City!"

Xia Cheng's eyes were completely different from seven months ago, although Yang Xiaokai had been mentally prepared for a long time, but because she didn't tell Sakura about it, she didn't have any defenses at all when she saw Xia Cheng alive now.

"You're still the same. Xia Cheng's cold tone made Sakuruma suddenly stop and stand a few meters away looking at her, "Sakurama Aizuki." ”

"Xiacheng, what's wrong with you? We've found the exit, let's go home together. Sakuruma had sensed the anomaly, but the deep desire in her heart drove her to walk slowly.

"Go home, I said it before, no one can leave here. ”

"Xia Cheng, that person on the top of the building was arranged by you, right?" asked Samusa.

"Miss Sakisa, you're the only person I admire here, but there's nothing you can do to me other than that brilliant brain. Xia Cheng stabbed the knife in his hand into the ground under his feet, looked around at everyone present with contemptuous eyes, and finally set his eyes on Sakurama's body, "Sakurama, I had such a hard time in those days, just because you left me in the forest, no one tried to find me, no one tried to leave any signal, probably you have regarded me as a dead man since that day, right?" ”

"So you have a grudge against this......" Sakurama lowered her head, she had felt guilty about this matter countless times, but she had no choice but to hate herself from the bottom of her heart, hating herself for not protecting the people around her.

"I destroyed the inscription on it, this black tower has been scrapped, and the exit inside will not be opened again. ”

"What did you say?!" Gui Liang immediately grabbed the sword in his hand and ran towards Xia Cheng, intending to solve everything by force.

"Drink!"

"Ding—"

Xia Cheng just raised his hand slightly, and when the black knife collided, a black blade suddenly shook out of the blade, and the sharp blade immediately shattered Gui Liang's long sword!

"Gui Liang!" The formation hurriedly rushed forward and helped the injured Gui Liang.

Everyone was shocked, they had never seen such a terrifying power, it seemed that they waved their knives lightly, but they didn't expect it to cause such a destructive force!

"Na, Akagaki, Miyomi, the plan has begun. ”

With Xia Cheng's light call, three figures who had been hiding for a long time slowly walked out from three different angles, they were all people who were separated from the team in that fall incident, and they were all gathered together by Xia Cheng.

"Xia Cheng, what do you want to do?" Yang Xiaokai knew that Xia Cheng now had a powerful strength that surpassed anyone else, and if he wanted to talk to her, he either had the certainty of being able to move her, or he had to make sure that she would not kill him within a single blow.

"Only when humanity is cornered will it know its true power, which will harness the fear of death, and with it, why should we return to that world full of infinite ignorance?"

Yang Xiaokai found out that Xia Cheng had been holding the obsidian and launched a powerful attack, but her physical strength had not decreased at all, if she also needed a lot of physical strength to use the obsidian, she would definitely not hold it in her hand all the time.

"You, you know I'm still alive, right?" Xia Cheng asked, pointing at Yang Xiaokai.

Xia Cheng had been following Samuzo's team, but she didn't show up, and after the two teams converged, she followed Yang Xiaokai into the fourth black tower, and had been secretly assisting them to come here.

"It doesn't matter if you don't say it, I'm not targeting you anyway. Xia Cheng's eyes instantly became extremely sharp, and he raised his sharp black long knife and stabbed Sakuruma's chest fiercely!

"Whew-"

I only felt that an afterimage flashed in front of her, and Xia Cheng was slightly startled, looking at Sakuruma and the ice room beside her, who had been pushed down in the distance.

Sakurama had already confirmed the murderous aura that came to her face just now, that's right, Xia Cheng really planned to kill herself just now!

"Xia Cheng, you should know that I won't let you do that. Yang Xiaokai quickly blocked in front of Xia Cheng, she was afraid that she would be more difficult to deal with than Hua Dao, with her fierce sword skills and ferocious methods, I really don't know how she cultivated this strength.

"Then I'll have to kill you. ”

At the moment, no one can help her defeat Natsujo, and before she can prepare to attack, the other three have already torn the team apart, and the others have followed Akira to the top of the building to subdue Kamitsuki, who uses a bow and arrow, and now it can be described as a one-on-one duel with Natsujo, even if she can't defeat her, she must protect Sakuruma from her.