With the inhalation of light and shadow, the originally set elevator also began to operate. With the sound of mechanical operation, the three of them clearly felt an upward momentum..................

"Ahh Chiho was so frightened by the sudden vibration of the elevator that he sat on the ground.

"Chi-chan? Are you alright............" Yuri asked.

"It's okay! …… Is the elevator moving............" Chido said, standing up with the boy's outstretched hand.

"Na! Fubo-chan ...... The guy disappeared...... Dead? Yuri asked, looking at the disappearing light and shadow in the elevator.

“…… I don't know much about that............" replied the boy as he looked at the bracelet in his hand.

“………… Obviously, as long as you live, you will have a way...... Why did she want to die? ”

"Yuri............ Because she's different from us humans! The boy said.

"Different?"

"We humans can try to forget what we want to forget, but her words can only keep a record of what we have encountered and experienced---- whether it is happy or sad............ The accumulation of these endless memories of grief will have terrible consequences that we cannot imagine, and that is madness! The boy said.

"I see! Sure enough, I said it............ Memories are too much of a hindrance! Yuri said.

"But it's not okay to be like you and not want to remember anything!" Qianhu complained.

"But didn't Fuba-chan say that? Excessive memory creates contradictions, and these contradictions can drive people crazy! Yuri retorted.

"It's a good thing if she can be crazy, but that artificial intelligence can never go crazy because of the setting of thinking logic, and the constant hovering between reason and madness like this is the root cause of her self-destructive thoughts!" The boy sighed.

"Learn to forget............ Chito muttered.

"It looks like it takes a long time for this elevator to reach the top floor............ Let's get some sleep before we get to our destination! So the boy suggested.

"Ha~ah.................. That's right! Yuri yawned.

"Yes! ………… I'll sleep too............" Chito stopped thinking in his heart and nodded in agreement.

The three of them rested against the wall............

Surrounded by the familiar and slightly darkened interior of the pipes............ This is what Senhe saw when he opened his eyes...... She followed her instincts and followed the pipe like a reflex, her little head peeking out of the exit after climbing the not-too-long ladder. What catches my eye is the waste pipe factory that I used to play with when I was a child............

Chiho tried to climb out of the exit to take a closer look, but accidentally fell to the ground and smashed a humanoid mark on the snow......

Why did you suddenly come back here? Chiho thought so.

Just as she was trying to find out, a snowball hit her little head.

"Chi-chan, look at the move!" Not far from her, a little girl was making a ball-throwing motion......

Is it? How did she get smaller? ………… Wrong! I'm getting smaller too............ Qianhu thought as he looked at his little hands.

"Smack!" Another snowball hit her head, causing her to give up thinking and start bending over to throw a snowball in retaliation......

There are snowballs thrown by the two little girls in the air, but because the difference in motor nerves is too large, it is always Qianhu who is confused by the snowballs............

"You guy!" Qianhu screamed and flew forward.

"Just smashed it over or something............ It's so cunning! Sen-chan. Yuri protested as she was knocked into the snow.

What the hell am I going to do............ Chiho thought as he lay on Yuri's body.

"Chi-chan! Didn't Grandpa tell us to get food? Yuri asked, sitting up.

"Is that so............"

"That's right!"

"That's it! ………… Let's go! ”

The two little girls stood up, patted each other on the snow, and then set off with their satchels!

"You ...... Do you have a good bag? Qianhu walked in front and asked.

"Hmmm! Take it............" Yuri said, carrying her bag in her hand.

The two of them cautiously crossed the street to the food exchange place. After waiting for a while, Sendo took out three pieces of metal from his pocket and handed them to the uncle at the exchange office.

"Two children and one adult............

The uncle took the piece of metal from Qianhu's hand and placed a pile of food on the counter of the transaction............

The girls excitedly packed the food into the backpacks they had brought and trotted back to their quarters............

Chinobe lives a carefree life of eating in his familiar home, asking his grandfather about words he can't read, and playing with the naughty Yuri............ What a joy! She thought............

"Thousand Households ............"

"Thousand households ............" Grandpa's voice came into his ears.

"Huh?"

The girl came back to her senses and found herself looking at a book, and Grandpa was not sitting on the chaise longue as usual, but standing by the window as if he was observing something.

"Please call Yuri!"

"Hmm!" Qianhu put down his book, put on his cloak, and walked out of the house.

"You ............ Where did it go? The girl began to look for Yuri in the place where she usually liked to play, and finally found Yuri in the crowd after passing through an alley.

"Yu!" Chiho trotted over to Yuri and grabbed the hem of her clothes.

"Chi-chan?" Yuri looked at her companion questioningly.

"Grandpa called you!" After Chiho finished speaking, he pulled Yuri and ran towards their house.

"Come to the garage!" Grandpa said to the two who came home.

"Grandpa............ This is? Qianhu asked, looking at the open door in the garage and the half-track car ready to go.

"Although these equipment are old, they are the right size, so if you have anything else you want, take them with you!" Grandpa didn't answer her question, but introduced the contents of the car!

"Grandpa?" Qianhu looked at the car keys handed over by his grandfather and asked puzzled.

"Remember how to drive! ………… You're probably the only one who can get out of the East Waste Pipe Dump Yard...... If you go west, climb the hill and climb the tower there............ Remember, going down is not going to work! Grandpa continued.

"What about Grandpa?" Yuri asked as she changed into her military uniform.

"You two can survive for a long time with a small amount of food............ Grandpa said, picking up his gun and walking outside the garage to start the guard.

"Let's go!" After making sure that it was safe, he said to the two girls who started the car and came to the outside of the garage.

"............" the girls watched their grandfather move forward slowly.

"Humans are creatures that forget...... But because of this, there is an accumulation of knowledge...... But even if it were, would it end up repeating the same mistakes............" said the old man, looking at the two of them in the distance.

"Boom!" The sound of something stopping reached Chino's ears and woke her up......

“………… Is it there? ………… Was it a dream............ "The girl who opened her eyes muttered as she looked at Yuri and Fubo, who were also asleep beside her.

"Ha~~~~Ah~~ It looks like it's here!" The young man, who was also awakened by the sudden stop of the elevator, rubbed his sleepy eyes and said.

"Hmmm! The elevator doors have been opened............ You~~ Get up! As he spoke, Chito woke up Yuri, who was sleeping on the side.

"Ahh That's probably the map that the AI said............" Yuri said as she woke up, looking at the map that appeared next to the open elevator door.

"Did it really appear............" Chinohe said as he looked at the map.

"Looks like we've come a long way............ Chi-chan, I'm ...... I remember! It's grandpa who said to go up, right? ”

"Hmm!" Qianhu nodded.

"Grandpa............ Why are you always thinking about the past? Yuri asked Chino, who held up her camera and took a picture of the map.

"No, it's just occasionally!" The black-haired girl said after holding up her camera and taking a few pictures of the map.

"I'm almost going to forget...... Those nasty things that don't want to think about............ Why? Yuri said with some sadness.

“…… But...... It would be lonely if you forgot it all! Qianhu also said with a little sadness.

"Now, Chi-chan! What exactly is this feeling every time you think about the past? That's the kind of ...... Somewhat sad...... There was a feeling of bitterness in my chest............"

"But it's not a nasty feeling, is it?" Senhe continued.

"Yes, that's right!" Yuri nodded.

“…… Nostalgia? "By a thousand households.

“…… Nostalgia ...... "by Yuri."

“…… I miss it...... "Thousand households."

"Hmm!" Yuri tapped her head heavily, making up her mind for the feeling.

"Yuri, Senho...... It's time to go! The boy, who was getting ready on the body, called out to the two young girls.

"Hmmm! Here it ............."

"Right now!"

The two girls walked to the side of the half-track car in harmony............

"So............ Let's go! With that, Chito started the car and drove towards the outside of the elevator!

“…… Upgraded! Controller permissions have been granted...... To ensure the correct enforcement of rights...... The artificial intelligence of the Sixth Base Tower will act as an inspector to supervise the controller............ "Just when the three of them were about to break away from the Sixth Base Tower, the bracelet that had been being upgraded was finally upgraded............