Unexpectedly transported to another world!!!

"What if the fantasy world was real? It sounds unbelievable but it would be a place with its own rules and order and also the most memorable journey we have ever experienced!!!"
June 15, xx 
In a small house in the late afternoon, there was a girl with long, light silver hair and brown eyes, looking extremely cute, only about 14 years old, named Azumi Satori. Sitting dazedly at the dining table next to dinner, Lying down on the table with a blank gaze staring into space, mouth continuously counting numbers.Then suddenly frowned and got up from the table with loud annoyance 
- Come eat, Neet!! Are you trying to make me bring you food?!!!
*Waiting for a long time without any reply, she gritted her teeth and clicked her tongue. *
-sffff, you didn't answer my call, I'm up all night watching anime again!
*she said then walked angrily to her brother Jin's room, a messy and self-indulgent person, a typical otaku character
As soon as she walked, Satori kept walking loudly and angrily. She slowly took a breath, straightened her legs, and kicked the door hard, causing it to swing open. Then she crossed her arms and walked into the room. The room was messy and dark,making her frown even more uncomfortably.
Walking to where her the crumpled tissues in the corner of the bed, she sighed in frustration.
-Besides staying up all night watching useless stuff, do you also watch porn?
The brother who was lying under the blanket, seemingly asleep, suddenly spoke loudly.
-stop judging now!!
How can one understand the feeling of being freed from studying and staying up all night to do whatever one likes? It's not just indulgence, it's freedom! 
Satori She shrugged and raised her eyebrows.
-free your mind. You are not as good as anyone else and still have dogmas. To be honest, you are now like a neet and a typical failure in society!
Speak out* 
-How can a kid like you understand this feeling of letting go?!!    
She bent down and tried to pull her brother out of bed with all her might but couldn't. 
-i-don't-care...
-At least get up, have lunch and then go back to sleep so I can clean up. If you leave it like this, the food won't taste good at all.
No comments * She also angrily let go of his hand and breathed heavily because of the effort she had put into stomping her feet and clenching her hands, looking annoyed*
-graaa!! You're so annoying!! Then get up and eat and clean up yourself, this girl doesn't care about you and only cares about her own business!!  
Then sulkily turned around and walked out of the room, not forgetting to slam the door * 
sighed in relief when he saw the girl gone*
-Phew... what a hot-tempered person
He was silent for a moment, looking at the door for a while.
-Never mind, just go back to sleep~ 
Satori kept muttering as he walked. 
-stupid brother is really annoying. Since summer vacation he has been hiding in his room every day, only coming out to shower or eat.Not talking to family members makes me feel like I'm the only one in the house! Leaving my children to fend for themselves is truly irresponsible!
Then she accidentally slipped while walking down the "twisting" stairs.
shocked her*
-...huh?!
*The scene changed not long after, Jin also slowly got up from the bed, he stretched for a while, swayed his body a bit, his mouth still yawned slightly*   
-...well, it's because of him that I can't sleep anymore. Maybe I should go eat with him? Or he'll scold me.
Then he slowly opened the door and walked out, walking leisurely*    
-Satori-chan~ where are you? Be quiet, kid?    
While walking down the stairs, he slipped just like the girl and fell down. Before he hit the ground, Jin gradually lost consciousness. 
When Jin slowly woke up, his head was in a daze and he felt like he was being tortured. He held his head and slowly sat up. He slowly looked around for a while and was shocked when he realized he had appeared in a dense forest since when?!!
He stood up with his face wide open and looked around to see clearly. Then he noticed a tiger with an eagle's head and large bird's wings flying by in the sky, making him rub his eyes for a while.  -..could this be?... 
then jumped up excitedly raised both hands to the sky and shouted loudly* 
-I've been transported to another world?!!! Awesome!!
happily waving his arms and legs *
-behold the magic of goddess aqua heyyya! 
He pointed straight at the rock next to him and shouted loudly, but waited for a long time and nothing happened, which made him a bit surprised and a bit worried. but quickly regained composure, shook his head, clenched his fists more persistently, then tried to calm down*
-yaaaa... I guess I haven't unlocked my hidden power yet, maybe I will soon...
then he noticed there was a river nearby so he walked over and bent down to wash his face trying to calm himself down but while he was washing his face suddenly someone splashed water on him making him wet making Jin frown in annoyance and grumble
-Hey! Don't you think it's rude?! Do you know who I am, you brat?!
Jin raised his head to look at the one who got him soaked with annoyance, but realized that the one who splashed water on him was actually a large brown bear that was fishing and also raised its head to stare at him.The two sides, one human and one beast, looked at each other for a while. Jin was worried and sweating, trying not to let down his guard against the bear.*  
Then he shouted loudly *
-"WE BERE BEARS"!!
then he grabbed a rock and threw it hard into the lake, then turned his ass up and ran away, leaving the bear behind to chase him. While running, he screamed in panic, his voice filled with despair.
-Mom, save me!!! I'm clearly the reincarnated male lead, why did I have a tragic ending when I just set foot in this world?!!  
Then he ran really fast, turned to the other side, but unfortunately fell and lay flat on the ground But before the bear could reach him, he was lucky enough to be saved by someone who pulled him into the nearby bushes, helping him escape a life of misery.
When the bear arrived, he turned around and left, but was nowhere to be seen.  
As for Jin, the one who saved him was his younger brother Satori. After waiting for him to leave, Jin rushed to hug Satori and cried like a child.  
-my baby!! I thought you were dead... I can't believe you're here!! How can I ever repay you?
She looked uncomfortable and confused trying to escape the grip *
-you stink!! get out!! and i don't need your debt it's useless!!!
Then the little girl calmly sighed and patted her brother's head with a bit of worry and comfort* 
-I'm still disoriented. Suddenly brought to a strange world full of danger...
Jin also quickly regained his composure and sat up, looking up at the sky in contemplation* 
-I didn't expect the two of us to be teleported here. For now, let's find a way out of this forest... this place should be near a residential area.
Then there was the sound of a horse carriage not far away. 
The two of them heard that, looked at each other and nodded with determination and a little worry.
The two men emerged from the bushes cautiously, their heads looking around for danger.Just like that, he approached from behind and followed the commercial vehicle out of the forest.
A moment later, when they got out of the forest and stood on the high cliff, both brothers were gaping in awe at the breathtaking scenery of this world, it was so Fantasy.Then the two noticed that there was also a kingdom nearby and looked at each other and nodded with determined eyes. 
The two brothers walked together to the nearest kingdom.*    
Along the way, they were surprised and also a bit interested in the creatures around here. In addition to being a plain surrounding the kingdom, this place is also home to many weird creature as if a huge turtle with a hairy shell and a chicken with four legs that walks upright like a monkey and has wings on both sides of its arms chasing a rabbit, etc...*Jin walked with an excited and optimistic expression* 
-this is great, it's truly the world of his dreams.
-Surely this guy will be the chosen one and will level up to become the champion!
you think positively*- ...hmm.. then go fight the demon king and save the world. Then go build a harem, this is really a true isekai story! Haha!
Satori just walked behind her, still alert and worried about the surrounding scene, looking around *
-stop being so paranoid...no one knows what will happen...wait, are we just going to leave the world we live in?!
 She suddenly panicked and looked up at her brother with worry* 
-what about parents?! What about what we're doing there?!!
Jin hesitates a bit but still continues walking, turns back to look at his sister with a bit of worry and a forced smile to reassure her*
-You're overthinking the problem, haha... I didn't get brought here for no reason,Maybe because I have great special power, the gods brought me here to save the world, and then I made a wish and they definitely answered.
As they neared the kingdom the massive wall that surrounded the kingdom to protect the people was magnificent and elaborately built from thick stones surrounding it*
As they walked to the city gate, preparing to enter the kingdom, the two soldiers sitting guard on both sides looked up, raised their eyebrows curiously, and thought to themselves.
-Why is that guy all wet but still smiling...and the girl next to him looks cute but why is she walking around glaring and looking around like this? No matter how you look at it, these two are both suspicious and strangely stupid!
Then the two soldiers nodded to each other and went to stop them, but were stopped by the two soldiers next to them. *  
The soldier looked at them with a serious voice with stiffness* 
-Hey, hey kids, where are you going in such a hurry? You don't look like you're from around here. You're dressed strangely. 
-Let me see your ID.
The two people who heard it seemed shocked and worried, not thinking about it like this*   
Satori could only bow her head trembling, she was really trying to think of a way to escape the current situation.* 
Jin on the outside he looked displeased and stomped his feet loudly* 
-Wait a minute!! What do you guys mean?!!
-This is clearly a fantasy adventure world, so why do we need all these complicated paperwork? Doesn't that seem unreasonable?!!
But inside he was still worried and extremely confused, not thinking it would be this difficult while his head was filled with daydreams.
*The soldier tilted his head in confusion after hearing* 
-fantasy? Absurd?...is the kid still a kid?
-Then call the guardian here, if you can't convincingly prove your identity, otherwise we'll send you to the police station to talk to each other.
Jin still looked annoyed just to hide his worry and shock even more, he was really helpless because the reality before his eyes was not like his imagination.
wait a minute!! Do you guys know who I am?! We saved you guys and there's only two of us and I'm a minor too And this is supposed to be a dream world! Why does it have to be like this?! It doesn't make sense when talking about fantasy worlds!!!
Seeing that, she was also silent, trembling, worried and helpless before her brother's behavior, only knowing how to cover his face, lower his head, and clutch his pants tightly, quietly turning back. She could only think to herself*-I don't have a brother...
The soldier this time also looked annoyed and pointed the spear at Jin, making him startled and panicked. He obediently stood still and tensedly looked at the spear tip.  
-Enough! If you guys keep pretending to be innocent in front of the executors! We won't show any mercy.
-Now if you can't verify your identity then come to the police station and talk to us so we can clarify. If you continue to resist like this, we will lock you up. Will you listen now?
The two of them looked at each other with tension and anxiety rising and then nodded weakly*
While the situation was difficult, the two were lucky to have a middle-aged man with a beard, dressed a bit like a cowboy and wearing a pair of bright red sunglasses, happily come to their side relieve 
-Wait a minute, you two! 
*then he took out his ID card and held it up for you two to see clearly* 
-We are a team, but we're on a special mission, so they're lost.
The soldier looked up and down at all three, then relaxed and sighed.  
-if so, then at least don't act like you're arguing like that.. you two stop being so stupid in the future, and when you get in, go do something new. otherwise we'll really arrest you. 
 Then the two soldiers turned away and continued to lean against the corner of the wall to guard and do their duty.* 
The two brothers breathed a sigh of relief, although somewhat confused and curious as to why he saved them, they still expressed their gratitude and followed him into the kingdom.*  
When entering the kingdom, they had to admit that it was very beautiful and ancient, just like what they had seen through popular culture, making both of them quite excited to look around. The crowd was bustling just like what they saw through popular culture, making both of them quite interested in looking around at the bustling crowd but not toxic or too noisy like in the other world.
Jin: *following while raising his eyebrows curiously* -Why did you save us? 
The man laughed loudly with enthusiasm and joy.*
-I was walking when I saw the girl wearing the shirt from the anime I like, and realized that you two were also reincarnated into this world.
Both of them looked surprised at the knowledge they had just acquired* 
*Satori glared at her brother with a bit of annoyance then looked at him in surprise as he continued speaking*-huh?! If so, does that mean many people were brought here before?! 
*He nodded seriously*
-Well, there are a lot of people scattered everywhere, we don't know why we were brought here... Me too.-Ten years ago, while listening to the song of singer Miku and sleeping, I was suddenly brought here when I woke up...
She looked surprised at the information
-Wait. You mean you also-
Jin suddenly interrupted, looking excited and admiring*
-You are also a fan of the virtual singer Miku?! 
He smiled smugly* 
-It's been 8 years, kid. I've listened to her music so much that I know almost half of the songs on all of her album my wife
Jin:*only looks more admiring* -Senpai...me too, just been following for 2 years, she has to admit that her music is both good and pretty!
Then the two looked at each other with excitement and high-fived each other, even though they had just met. 
Seeing that, she could only sigh, her eyes looking at the two of them aimlessly. *
-I don't know why, but I'm starting to hate otakus more...
as they walked together through the rows of houses where people were happily and busily trading back and forth, the cowboy said a little seriously as he walked
-just call me Usefup.
-if you kids ask me what this magical world is like?
-it's just like what the movies say it has the demon king and his sins, there's a kingdom, there's races of beastmen, elves, blah blah...
-only difference is its political system is quite complicated and we should be lucky that we are in a place safe from war. 
-The currency in this world, also known as "Cld", is equivalent to 1 yen 
Satori followed behind, listening quietly, looking serious and a little more excited.
Jin was walking and feeling annoyed because so many people were staring at him on the street! He didn't notice that everyone was staring at him because he was soaked!
 After walking for a while, they talked to each other as they walked. And learned that his name was Usefup and information about the current world*  
Satori: *listening carefully to Usefup's words, quite surprised and extremely curious*
-so you mean this Mixua kingdom is currently outside the demon king's war zone and the other continental kingdoms, so it's still peaceful?..hmm... demon king... war? Sounds really chaotic... 
*then her eyes flashed with worry*
-Wait... if this world has magic. Then how are we supposed to live in this world?! We're just mortals...
Jin was a bit worried after hearing that because he realized that he had not been doing anything extraordinary until now, but he shook his head and tried to calm himself down with some fancy words.
Usefup just laughed out loud after hearing that*
-hahahaha! Don't worry, don't worry.     Then he stopped at some shop with a sign saying "adventure and risk" and looked up at the two of them with a smug look.*
while they looked at each other in confusion