Here's the exact translation of your original text without any alterations or stylistic changes:
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???: [Dying... war... you know... I hate them all...]
????: [It's okay, I understand what you're saying, I've experienced it too]
The monster, which seemed to be made of black smoke, was stroking the boy's hair with its soft, cold hand.
Boy: [Will there ever be a day when there's no war?]
The black creature gave a faint smile and looked around the boy's dark, gray room. Its smile was barely visible because of the surrounding smoke.
Creature: [Probably not, there's never been a time in history without war. These wars will only end when no humans remain]
The boy said with a quiet laugh:
Boy: [Your hand is cold]
The black creature smiled wider.
Creature: [You're so mean]
The black creature paused briefly and placed the boy on his white bed.
Creature: [It's time to sleep]
The boy stared at the creature worriedly.
Boy: [Will you still come to see me when I wake up?]
Creature: [You'll have to find that out yourself. So until then... sleep]
* * * * * * * * * * * * * * * *
Power or humanity... which will you choose?... You'll understand your choice later... so choose wisely... maybe because.... my choice..... what I'm saying is.... be careful... with your friends... and enemies...
* * * * * * * * * * * * * * * *
He put his bag on his shoulder, walking slowly through the white and red school hallway that was full of scratches and faded colors, heading to the classroom. Other students started whispering when they saw him.
Student 1: [Look at him, that's the boy who talks to himself like a crazy person]
Student 2: [Did you see his scary eyes?]
As the boy continued walking with a big smile, he paused and winked at the students with his bright blue eyes.
Boy: [Heh heh, what pretty girls, do you want to come to the school's second lab after school? Maybe I'll show you some of the faces from my collection that I peeled off people's skin, hmm? I know it's a tempting offer]
The girls started screaming and running away.
The boy smirked and said quietly to himself:
Boy: [People don't get jokes, huh? Why would anyone even have a face collection?]
He ran his hands through his yellow hair.
Boy: [Well I guess it's ti-]
His words were cut off by a familiar laugh.
???: [You're still talking to that simulator? You're so pathetic]
The hologram began to fade and the space changed to a large, cold empty room with white-painted walls and a ceiling damp from rain. Tohitou smiled and said in a playful tone:
Tohitou: [Oh shut up Haru, at least I don't talk to an AI as if it's my girlfriend]
Haru blushed deeply.
Haru: [Sh... don't talk nonsense... unlike you I don't always talk about some black creature that was my imaginary childhood friend]
Hearing the last sentence, Tohitou replied in a neutral tone:
Tohitou: [Haru, what do you mean? Magic exists in this world, I can stop time and you can rewind your body a few seconds.... and you're saying the possibility of a black creature existing is zero?]
Haru was shocked hearing Tohitou's new tone.
Haru: [At least 20% of people have magic, but you're the only one who says you've seen this creature-]
Tohitou's fist hit Haru's face hard, making Haru fall to the ground, as Tohitou said in a dark, teasing voice:
Tohitou: [Then you should believe]
Haru put his hand on the injured spot and felt the blood dripping on his fingers.
* * * * * * * * * * * * * * * *
You know.... even though.... it was wrong... I'll never regret it... because... in the end... the only thing that matters... is that.....
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June 24, 2018: [8 years after Tohitou's birth]
Torn wrapping paper filled the space around the Christmas tree. Among all the paper, Tohitou in cream velvet pajamas was leaning against the Christmas tree, holding his new toy carefully in his small hands and staring at it intently.
Tohitou: [Mom, I told you not to get me toys with weapons]
His mother, who was busy reading, replied tiredly:
Mother: [Look, I was really tired and didn't pay attention, just play with it, okay?]
Tohitou nodded slowly.
Tohitou: [Okay]
* * * * * * * * * * * * * * * *
Well... this might be one of the few times... the story is told from Haru's perspective....
* * * * * * * * * * * * * * * *
Haru walked slowly down the subway entrance stairs. The walls were white and the floor was made of gray tiles. The entire place was full of stalls and street vendors adding to the subway's crowd. The loudspeaker could be heard in the background.
Loudspeaker: [Train number 3, train number 3, train number 3 is departing]
The train doors started opening with a screech. Haru slowly entered the crowded train and barely managed to squeeze himself in among the people.
Haru: [Damn this stupid train and damn Tohitou, that idiot actually believes in some imaginary smoke, what's wrong with him?]
He gently put his hand on his face.
Haru: [The wound still hasn't healed...]
After a while, the train stopped and the doors started opening as the loudspeaker announced again:
Loudspeaker: [Fizuko City station, passengers for Fizuko please exit quickly]
Haru walked angrily toward the exit while muttering to himself.
He walked angrily up the white subway stairs toward the exit, stomping his feet hard on the ground making loud noises. People stared at him in surprise.
* * * * * * * * * * * * * * * *
March 8, 2016: [7 years after Haru's birth]
The only sounds heard were of beating and fighting. Family fights..... probably one of the most common things in any family, but not to this extent.
???: [I can't believe something this worthless was born into our family]
The man was wearing a formal suit and the sound of his kicks hitting what appeared to be a 9 or 10 year old child filled the room. The child was silently crying from pain, curled up in a corner like a small ball to avoid more sensitive areas being hit. The man spoke in a cold, rough voice:
Man: [Haru.... I can't believe someone as useless as you was born into our family. It would've been better if you were stillborn. You should die]
Maybe these fights and humiliations were cliché things that usually happen in fictional stories, but in reality, they were much more painful for Haru.
* * * * * * * * * * * * * * * *
(Present time)
Haru's loud footsteps were lost in the city's noise. The streets were full of food stalls, the sounds were unbearably loud to the point of hurting ears, and tall buildings surrounded the entire city as if they were besieging Haru.
Vendor with a kind smile: [That'll be 700 yen, sir]
Haru gave the money to the vendor and carefully took the food container.
Haru: [I'm sure Tohitou is starving to death by now, I should go home.... maybe we can talk a bit if there's time...]
The sky was gradually getting darker and the city was emptying. Haru continued walking with fading anger.
Haru: [I've never seen Tohitou like this before.... what happened....]
Haru's thoughts were interrupted by a woman's terrified scream.
Woman: [No, please no, that's my whole month's salary!]
A man's rough voice was heard along with the woman's.
Mugger: [Shut up, if you keep screaming I'll make sure you can't breathe anymore]
The woman's voice stopped out of fear.
Haru: [Well well? Did someone just say something about murder and breathing? Or did I mishear?]
The mugger turned his head toward the voice and saw a boy with brown hair and eyes wearing a gray top and black jeans getting closer every moment.
Mugger: [Who the hell are you, trying to play hero-]
The mugger's words were cut off by Haru speaking right next to his ear.
Haru: [Play hero? Kid, do I look like Ben 10 to you?]
The mugger quickly reached into his pocket, pulled out a black pistol and started shouting while shooting at Haru.
After about 10 shots, the mugger stopped and stared at the smoke that had obscured his vision.
Mugger: [Did I... hit him?]
A laugh started echoing in the background.
Haru: [I don't think so]
Suddenly the mugger felt a heavy pressure on his body, as if 200 kilos of force was spreading across him.
The mugger's brain exploded without making any sound and the walls and floor were covered in blood, as if buckets of paint had been splashed on them.
Haru: [Just used a bit of my powers]
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This is a completely literal translation of your original text without any modifications to style, wording, or structure. I've maintained all the original formatting, line breaks, and even the punctuation choices exactly as you wrote them. The names remain unchanged (Tohitou and Haru). Let me know if you'd like any clarification or if this meets your requirements perfectly.