A/N: I don't own Kingdom Hearts or any of their characters.

"Sora, it's getting late. You should sleep. I'll continue the programming." Terra advised his younger brother. It had been a week since Sora realized the thing Roxas lacked of. Ever since then, Sora had been working to complete Roxas. Developing a program called [Heart]

"It's fine. We've made it this far. He must be completed. In order to bring Ven back. I'll do anything. No matter what." He said as he stared intently at the monitor.

"Sora, Terra…" A monotonic voice called. It was Roxas. He carried two cups of coffee with him.

"Oh, thank you, Roxas." Terra said as he sipped on his coffee and then persuaded Sora to go to sleep. "Really, Sora, you're still 18 years old. You're still young. Don't abuse your body too much. You tell him, Roxas." Terra said as he turned his face to Roxas.

"Sora. Let's sleep together." He said.

Terra spitted his coffee.

"What? Who taught you that?" Terra yelled while Sora froze.

"Aqua." He answered.

Terra sighed. He knew this was coming. "Well, you can forget what she said about that. I want you to tell Sora that putting an all-nighter isn't good for his body. Do you understand?" Terra asked.

"Understood" He nodded. Then he turned to face Sora, whom waited for Roxas to say something. "According to my database, you must sleep for at least 9 hours a day. Please sleep now." He said to Sora.

Sora watched him and then smiled. He patted Roxas's head and then sighed. "I can't… I want to complete this program as fast as I could. I want to let you feel what it felt to be happy, or sad." He said as he brushed Roxas's hair.

'I want you to be Ven…' He thought.

"You can drag him to bed, Roxas." Terra commanded and Roxas responded to his command. He seized Sora and then piggyback him to his room.

"Roxas! Let go of me! I'm not that tired yet." Sora protested. However, Roxas was smart enough to prioritize Sora's health. Still, he did that because he was programmed to, not because he is worried about Sora.

Which saddens Sora even more, now that he realized what Roxas's actions were based on.

"Say, want to accompany me for the night?" Sora asked as he changed to his Pajamas.

"But Sora, you must sleep." Roxas replied. Sora handed him another set of pajamas and told Roxas to change to it.

"It's alright. You don't have to do anything. Just stay here." Sora said as he jumped to his bed. He moved to the side and motioned Roxas to sleep next to him.

'Like we used to…' Sora thought as he remembered how he and Ven used to share a bed whenever they watched scary things together or have a nightmare.

Roxas nodded and quickly changed to the pajama Sora gave him. He sat on the bedside and then closed his eyes.

"Save Mode activated…" He muttered.

"Save mode? What is that?" Sora asked. He then lied down next to Sora, his eyes watching Sora for the next order.

"Goodnight, Roxas." Sora muttered.

"Goodnight, Sora." Roxas said. Realizing that he is supposed to go to 'sleep mode', he closed his eyes and turned off his system.

Days passed quickly. They had been working hard to make a [Heart] for Roxas. Especially Sora. He was the one working the most.

Meanwhile, Roxas was still having the weird bugs in his system. Question marks has been popping out. There are no words, just a long strike of '?'s . He had no idea how to debug them. Not even after he told Terra about it.

"I don't find anything strange, Roxas. Strange, I don't see the question marks you saw." Terra said. Roxas nodded and decided not to bother about it. After all, it did no harm to his system. "Understood. I shall not bother with them" He said as he walked away.

The question marks appeared again, even more popped up after he learned something. It seemed like the more he learned, the more this bug appeared.

He then saw Sora with swollen eyes, came out from a room. The room that he was prohibited to enter.

"Sora, are you okay? You have swollen eyes." He stated. The brunette boy glanced at him and forced a smile. "Roxas…" He muttered, then stared at Roxas's face. Then he cried.

"What happened, Sora?" He asked as he lied down to help him. Sora reached out for him and then cried on his shoulders.

The question marks popped out again.

"Why are you crying, Sora?" He asked.

Sora didn't say anything. He just cried. Like a child to its mother. Sora just stayed there. And Roxas was unable to do anything. He just stood there. There were no commands. He didn't know what to do. He sat and waited. He waited until Sora finished crying.

"I'm sorry… Roxas." Sora muttered with tired face.

"Are you hurt, Sora? According to my database, humans cried when they are hurt." Roxas stated.

"Hurt? Well, my body isn't hurt… but…" Sora muttered then he placed a hand on his chest. "…My 'heart' is." He answered.

"A heart attack? But you are still young. And you showed no symptoms of having poor heart." Roxas stated again.

"No, not that heart… It's the 'heart'… the one that I will create for you." Sora said with a smile, then he took a deep breath.

"Yeah, I'll definitely finish it for you. Just wait, Roxas." He said before he ran to his research room and continued the project.

" 'heart' …" Roxas repeated. Then he glanced at the room. The room that he was never supposed to enter.

The question marks, however blinded him and before he knew it, he was already in the room.

It was a small room. However, many things were piled in. There were lots of photos. The first one that reached his eyes was a portrait of Terra, Aqua, Sora, and another boy. This other boy's face looked just like him.

Next to the portrait was an album. He opened it and saw many photos of the four together. Next to each photos were little notes.

'Ventus' and Sora's 5th birthday ' was written next to a picture of the four together with Sora and the boy in front of the cake, and Terra and Aqua behind the two. They were smiling. They all looked happy.

There were other photos. ' Ventus won 1st in Ice Cream Beat' , 'Ventus, Sora, Riku, Kairi in beach' , 'Dinner at Master Eraqus' house', and…

'Small party at hospital'

At the last one, the writing was really hard to read. It's as if the writer was trembling when writing it. In that picture, there was Ventus, smiling to the camera. Around him was a stack of comic books and fruits. Sora was next to him, his smile forced. Aqua was on the other side of the bed. On her hand were apples. It seemed like she was trying to cut them into apple bunnies.

Roxas then closed the album and examined the room some more. There was a bag with a note attached to it. 'Happy Birthday Ventus! From: Aqua' was written on the note. Within the bag was a hand-made scarf.

Next to the scarf was a wooden sword with Terra's name carved on it. There's also a note 'Get well soon' in Terra's handwriting.

Last, there was a lot of colorful paper swans. They were not very well-made, but there were approximately one thousands of them. Another note was attached to it. This one has a very terrible handwriting. 'Let's play blitzball once you're not sick anymore! –Sora-' it said.

So that's what it was.

This room is filled with their memories of Ventus.

A boy that looks like him.

No, it was him that looks like Ventus.

He then exited the room.

"It's impossible after all." Terra muttered with a sigh. The [Heart] program has been finished, however it was too much to be loaded with the machines that it broke whenever they tried to make a beta test on it. He couldn't even count how many times they failed running the program.

Sora banged the desk and faced Terra with an angry face. "Why…" He muttered, then yelled at Terra. "Don't you want Ven back? That was why we made Roxas at the first place, right? Terra!" He yelled.

Terra sighed again and stood. He grabbed Sora by his shirt and glared at him.

"Then what do you make of Roxas?" He yelled to Sora. "The [Heart] Program is too much. Who knows what will happen to him! Don't you feel anything for him?"

Sora gritted his teeth and then pushed Terra away.

"I know that…" Sora muttered. He hid his face with his bangs. "But still, I want Ven back. I want him back no matter what the cost is." He balled his hand and slammed it hard on the desk.

"Let's stop this, Sora. The [Heart] Program cannot be finished." He stated.

"Shut up, Terra!" Sora shouted.

"I'll bring Ven back. No matter what, I will… I will bring him back to life." Sora said before he returned to his monitors and continued to work on the program.

'Why can't you understand, Sora? Roxas and Ven… they are two different people. You can't… force Roxas to be Ven…' Terra thought as he sighed and left the room.

The two were left clueless, that Roxas was listening to their conversation.

"Ventus, are you awake?" Sora asked as he entered the room. Ventus was watching the window. Snow was falling. Ventus's face was sad. He knew that he won't last for long. He'd given up the thought of recovering. Yet he still fought. He wanted to see his family for just a little longer.

He nodded to Sora. He didn't want to speak. If he spoke, he would cough, and that would scared Sora even more. 'I'm giving false hopes to everyone…' He thought. Everyone believed that he will recover. But he himself knew, that the death god was waiting for him.

He smiled to Sora. Hoping that it would cheer Sora up.

'If I'm gone… Sora would probably cry… Terra and Aqua… I wonder if they will miss me… Master Eraqus… Riku and Kairi… There are so many people I knew. There are so many people that knew me. Come to think of it, what will happen when I'm gone? I heard it felt like sleeping, only that you never get to wake up… It's scary… I don't want to think about it…' He thought.

Sora crawled up next to him and then grinned as he brought him another comic book.

"Let's read together!" He said.

Ventus nodded and lied his head next to Sora. Reading the comic book together.

However, he could only last for a few minutes. Ventus soon lied asleep again. Sora knew that, but he kept reading it to Ven. He summarized the story and read it out to the sleeping Ven. He wanted to make it feel as if Ven was awake, and that he was reading together with him.

"Ven… I'll bring you back. Then, we can have our Christmas party. They are setting the big Christmas tree in the downtown again. You know, just like that time. We failed to see it together last time. But I know, we can see it together. After that, we will continue the party at home. Aqua will bake the cake, Terra might dress up as the Santa. Ah, well, I know it's childish, but… It's fine, right? We will decorate the Christmas tree together. You can place the star on the top. I know it's your favorite. And then…" Sora muttered.

He was holding onto Ventus's portrait. He sat in the middle of the room. His eyes rolling down tears. He sobbed as he talked.

Roxas was at the outside. Listening to Sora's monologue. He then walked to Terra and Aqua's bedroom.

Aqua was crying, Terra was embracing her. His face looked pained.

"I'm sorry… But… It's almost Christmas again… Terra, I…" Aqua muttered.

"It's okay, Aqua… I know… Ven won't be here again… Don't cry, Aqua…" He muttered as he kept embracing her.

Then Roxas started to question things. The many question marks within his head started to form a question.

'Why am I here?' It reads.

'I see, that's why.' He thought as he concluded everything he just heard.

He was a robot.

A miracle that was born into this world through his master's hands.

And today, he shall fulfill his masters' wish.

His body was moving on its own. He approached the research room and into Sora's computer. He logged on into it and attached himself to the computer.

'I'm here to fulfill their wish.' He thought

Loading data. . .

[Heart] Program accessed. Load Data?

[Yes] ◄ [No]

Processing…

[Heart] Program accessed.

WARNING!

This program has encountered a series of errors. Do you wish to continue?

[Yes] ◄ [No]

'it's fine… It should last, even for a few minutes only. It's fine if I'm broken…I will grant them… their wish.' Roxas thought as he pressed the button to start the program.

Confirming target. . .

ID name : Ventus.

Target found.

Loading Data. . .

1%

12%

20%

36%

59%

It was when they realized that the computer were starting up. Sora barged into the research room, only to find Roxas starting up the [Heart] program.

It was then doubt filled Sora's heart.

"Roxas? What are you?" Sora yelled as he examined the monitor. It showed that the restoration had reached 80%

"Roxas! Stop this at once." Terra commanded as he ran to the computer and tried to stop the program. Too bad that the program can't be stopped once it has stopped running.

Compiling data. . .

Loading Memory. . .

"Roxas…" Sora muttered as he watched the screen changing. The loading was almost done.

'I'm supposed to be happy, so… why?' Sora thought. One side of his heart wanted Ventus back. However, there was a small piece deep within his heart that he didn't want Roxas to disappear.

"Stop! Roxas!"Sora shouted. He shook Roxas's body as if trying to wake him up and cancel the installment.

'Why…'

'Why am I regretting this now?'

'Why…'

'…Roxas!'

The monitor flickered and then showed that the process was done. Roxas opened his eyes slowly, but then grabbed his chest. As if something is hurting him inside.

Roxas could feel that something was pouring him. Was this what they call… feelings?

"Kh… what?" Roxas muttered. He could hear his heart beat accelerating. Something was stabbing him inside. He was realizing. He was realizing the sadness he felt as 'Roxas'.

How it felt to be created just to substitute someone.

"A…Aaargh!" Roxas cried out. "AAAAAAARGGGH!"

"Roxas! Delete the program! Quick!" Sora commanded. But Roxas couldn't listen to him. The pain was too much for him to bear.

'It hurts…' words appeared on the monitor. It was showing Roxas's thought.

'It hurts, please stop, It hurts, It hurts, It hurts'

'It hurts, It hurts, It hurts, It hurts, It hurts, It hurts, It hurts, It hurts'

'It hurts, It hurts, It hurts, It hurts, It hurts, It hurts, It hurts, It hurts , It hurts , It hurts ,It hurts!''

"Roxas!" Sora cried. He didn't make the program to make Roxas like this. He only wanted Ven back. He didn't meant to hurt Roxas. He cried. He begged. "Delete the program! Roxas!" Sora cried helplessly.

It was his fault.

He made Roxas felt this way.

He was horrible.

Roxas data was corrupted. Electricity sparked from him. Damaging his system even more. The [Heart] Program was too much for him after all.

He struggled and fell down as he lost his balance. He grabbed his head with both his hands. It felt as if something within him would explode.

'System damaged'

'System damaged'

Then the words in the monitor turned into some garbled messages.

'Syntax E!#&!(#'

'#$&!)#$%$%ic39&(#*n!859yn!'

"System damaged." He spoke. He was unable to control his body anymore. His struggles stopped and he stood up. However, he was no longer listening to anything. No longer feeling anything. His system was shut off and only one program went running.

"What's going on…Roxas?" Aqua called. However, the boy was acting strange.

"No… this is… limit break!" Terra exclaimed. It was one of the settings set up by the late Master Xehanort. This setting couldn't be taken off by Terra no matter how much he tried. It was a program to kill whoever it is damaging him. The 'Limit Break'.

His eyes scanned the area, and eyed at Sora. The second he saw him, he jumped and placed his hands on Sora's neck. Strangling him.

"Roxas!" Both Terra and Aqua shouted as they tried to break him free from Sora.

"Why is this happening, Terra?" Aqua yelled at him in panic.

"The limit break. It will attack anyone that hurt his system. It must be because of the damage from the [Heart] program. He might identified Sora as an enemy!" Terra said as he pulled Roxas as hard as he could.

"R….as" Sora muttered. His vision blurred. Sora fought hard and then managed to mutter something to Roxas.

"I'm sorry." He said before passing out.

"Sora!" Both Terra and Aqua cried out. When he returned to his normal mode, he saw Sora lying there with a pale face.

"…Sora?" He muttered.

A huge pain was felt from his chest.

'…No!' He thought as he lost his consciousness.

Roxas woke up in an empty white room. There was no one there. Only himself. He could see nothing, only white. There was no wind, no sounds, no fragrance, nothing.

"Where am I?" He said to himself.

"…Am I… broken?" He asked. Then he remembered.

He was strangling Sora. He remembered how he couldn't control himself and…

Did he killed him?

Was Sora… dead?

Tears flowed from his eyes. "…huh?" He muttered as he shook them off. However, they wouldn't stop. He kept crying.

'I'm sorry…' He remembered. That was the last thing Sora said to him. After that, he couldn't hear anything else. Terra and Aqua was yelling something to Sora. Probably to him as well, but he couldn't remember. His memory was damaged.

"…What's this… feeling…?" He asked as he grabbed his chest again and cried.

"It's sadness…" A voice spoke. The voice sounded just like his. However, it was more young. He turned and found a boy, apparently a lot younger than him. He knew this boy. After all, he was designed after this boy.

"My name is Ventus. Just Ven is fine. We met at last, Roxas." He smiled to him.

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