This is an open field, unobstructed by urban buildings, and you can see the horizon in the distance.

There are only a few weeds growing here and there on the endless land, and even the roads are far from here. Under the white sunlight of winter, I don't feel the slightest warmth. When the weeds are gone, and all traces of life are eradicated, a white building appears alone on the ground.

The hospital-like building seems to have been weathered and is now dilapidated, and even some of it has collapsed, looking extremely bleak.

It seems that even time is frozen in the dead silence, but it is broken by the arrival of two people.

"I didn't think I'd come back here one day."

Shiki and Xia Xu stood in front of the building, and the sigh-like voice came from Xia Xu's mouth.

"Sister."

The facilities of the New Life Truth Society, where Natsuo and her former companions lived. It is both a place of death and a cradle of birth. Whether it is for the four seasons or for summer, it has extraordinary significance.

"I'm sorry, Shiki has been so busy lately, and you came here with you."

Restrained his expression, Xia Xu looked like he was talking about ordinary things.

"It doesn't matter. As long as it's my sister's request. ”

Today, Si Si was suddenly asked by Xia Xu to accompany her to this facility to have a look, which was a little unexpected but reasonable. Now that she has recovered some of her memories, it is natural that Xia Xu will want to come back and take a look, and it can even be said that she didn't expect her to endure it for so many days.

Shiki didn't personally experience the events of that time, but because of the thoughts left by his companions, he felt like he felt the same, and every bit of life there, even if it was full of bitterness, still had some rare but precious things.

It is these precious things that will make everyone protect him.

The two of them did not exert any force, but walked into the facility step by step.

The inside was much more dilapidated than the last time Shiki came, the walls peeling, the floors cracking, and everything faded with the passage of time. Everything looks cold,

Passing through the corridors, sometimes stopping in front of large and small rooms, Xia Xu seemed to be reminded of the past.

"I miss it so much."

After entering a classroom-like room, Xia Xu showed a hint of a smile.

"This is where we take our cultural classes."

Half of the blackboard in front of the classroom was broken, and many of the surrounding seats had fallen to the floor.

"This is probably the most relaxing time besides rest and eating."

Because it's for cultivating superpowers, it's relatively easy to take other courses.

"Even so, my sister is usually the best student."

Talking about what happened here in the past, there are not many happy things that can be said, but Xia Xu still wrote down the insignificant happiness.

"My sister was very good before."

"Of course!"

Maybe if the experiment hadn't been carried out so early, and given Xia Xu some more time, maybe something would have changed. Of course, these are just fantasies, which only add to the sadness.

Leaving the classroom and coming to the place where Xia Xu and the others had slept, Xia Xu found the past room without hesitation.

"Sure enough, there's nothing."

"Did my sister leave anything behind?"

"Nothing important. It's just some children's treasures, like beautiful stones, origami from friends......"

From Xia Xu's ability to say exactly what she has, it can be seen that she is not as unimportant as she is in her tone.

"That's it, it turns out that my sister also has such a childish time."

Imagine sitting on the grass in the courtyard with a friend weaving a wreath of flowers, and it always feels a little magical, and using scissors to divide the body of the rag doll is more in line with the witch's painting style.

"Shiki is thinking about some rudeness!"

Probably because his thoughts were perceived, Xia Xu showed a shy expression.

"I just think my sister is cute."

"Humph! Ignore you! ”

Xia Xu, who was completely dominated by the four seasons, took a big step and ran away.

Walking through every corner of the facility, they finally arrived at the experimental area within the facility. When the four seasons first came, it was still full of miasma and alienated pieces of flesh, but now these have long since dissipated, leaving only a trace of coldness, as if the cold wind seemed to penetrate the walls and take away the temperature here.

In the deepest part of the place, where Xia Xu and his companions were taken away, the four seasons and Xia Xu couldn't help but be silent, without the mood just now.

"Hand ......"

"Sister?"

"Can you pick it up?"

"Okay."

Feeling a hint of warmth from the interlocking fingers of his palms, Shiki felt that Xia Xu seemed to relax a little.

"Let's go."

Finally came to the laboratory, Xia Xu looked around silently, not knowing what was going on in his heart.

"I once met a researcher in the neighborhood who had been affected by an evil god and turned into a monster."

On the way over, there are traces left by Shiki's original destruction of monsters.

"And then I saw 'sister' here."

“？”

Xia Xu finally reacted because of the words of the four seasons.

"Here I think about everything, the death of my sister, and my birth."

Shiki pressed his hand to his chest, though there were no more of his companions who had guarded him.

"Once Nye told me that it is my existence that binds everyone's souls, and that my existence is sin."

"Nothing!"

Xia Xu firmly denied it.

"The four seasons are our yearning for the future."

"Hmm."

Shiki remembers everyone who was protecting him until the end, so he would never try to tarnish everyone's thoughts like that.

"Actually, I have to apologize, because it's because of me that the four seasons have experienced so much pain."

"This can't be done, if my sister denies this, I can't be born."

The birth of the seasons comes from death, but it does not represent despair.

"Yes, I'm sorry."

“……”

I always feel that my sister will become weak when it comes to the past, and she can no longer connect with the image of a witch who can control everything.

"People are not tied down, but they are willing to stay with me. Always by my side to protect me, but I don't think that's all. ”

"Huh?"

"They led me here and showed me everything. There was a time when I didn't know what they meant by doing these things, what they were trying to convey to me. ”

“……”

"Now I understand."

"What is it?"

"Everyone must want to tell me that my sister is not dead, and they want me to find my sister."

“！”

Hearing Shiji's words, Xia Xu held her breath, and then turned around suddenly, as if she didn't want Shiki to see her appearance.

"If you can find your sister, you can live up to everyone's wishes."

“…… Fool. ”

After being silent for a long time, Xia Xu seemed to have finally calmed down.

"Let's go."

"Is it already possible?"

"Hmm."

So the two began to return the same way.