To the readers: This is a flashback of how it happened. Enjoy reading if you can…

For What Reason

"Sir, the procedure will claim you life. Do you still want to pursue this?"

The doctor sounded worried. He was Athrun's friend for some time now. When the incident on Cagalli's illness reached him, he was the one who searched for some alternative other than the extended conditioning. But his efforts were nearly wasted when Cagalli underwent the extended conditioning.

But Athrun was persistent. He was told about this breakthrough, a month after Cagalli was hospitalized, but he couldn't possibly capitalize an undeveloped research. So he waited until this was completed- and volunteered to become the first specimen.

"You've already told me that. And my answer is still the same. I will not back out."

"So be it," the doctor replied.

He was counting down the days of his life. The scientists said that he must undergo some physical, mental, and emotional examinations before the procedure. Everyday he goes to the hospital, being studied and analyzed by people he didn't know, or doesn't seem to care that he will be dying in less than a week.

"So the procedure goes like this. Ms Attha's cancer hasn't metastasized yet, so the threat of other organ complications isn't considered. We only need to replace the infected area of the brain which is the dorsal area of the cerebrum," the surgeon explained.

" We will have to obtain the part on our donor's brain, and of course, we will not replace his brain with a dysfunctional one. In other words, he will die after the operation has been done successfully."

All the other surgeons looked at Athrun. Athrun stared right through them.

His eyes were stoned- and he didn't feel anything. Fear, not even pain.

The only people who knew his secret were the doctors, Shinn, and Lacus Clyne.

Lacus find it hard to accept Athrun's fate. After learning about his plan and after being asked to participate in it, she's always struggling to face Kira.

Always crying whenever the subject about Cagalli's brain transplant is brought up.

" I wonder, why wouldn't they let us know the identity of the donor," Kira once asked.

"The doctor said that the donor wanted to keep his identity, and that everything be hidden to avoid complications after the procedure," Lacus lied.

She was nearly crying after saying those words. She looked away from Kira.

"How about Athrun? I haven't seen him since last week. He was the one who suggested this but he isn't here. The operation will pursue tomorrow and he hasn't even visited Cagalli."

"He's currently having some talk with the ZAFT forces. They wanted him to return," Lacus once again lied.

Questions. All answered with fabricated stories, just to cover up for someone's sacrifice.

"Listen Lacus, I don't want Kira to know all about this. Not until the procedure's done. And I need your help."

"Why don't you want him to know about this?"

"Because he may disagree with this whole thing."

"I see…"

The day has arrived. Athrun was confined in the pre-conditioning area, and the other doctors were running some tests on Cagalli.

He was sitting on the bed, staring blankly at the white walls of his room. Remembering that day when he and Cagalli first met. The sky's pouring itself in the world. Much like this day.

It was raining hard.

He turned on the TV.

A storm is about to hit the country…

Storm. Somehow, when it's gone, he's gone too.

He remembered what the doctor asked him when he volunteered as the live donor.

"For what reason Athrun?"

He answered by giving his friend a faint smile.

Now the question began to float in his mind.

Three hours to go

"Reason," he said to himself.

"She wanted to die alone because of me. Now I will die because of her."

For things that are done wholeheartedly, reasons were never important- because it's the heart that never thinks and never lies.

Thirty minutes…

The nurse came to his room and asked him if he's ready. He nodded. He was taken to the operating room.

The team of surgeons was there. There were two beds. One occupied by Cagalli, and the other by him.

He was laid down to his place. The lights were hurting his eyes.

He looked beside him. She was there. Equipped with an oxygen mask, the respirator, and all other apparatus that meant to save her fragile life.

His bed on the other hand is empty. He was given some fluids intravenously. He felt the needle- quite painful. He once again looked beside him. The sight was even more painful.

The doctors were preparing the anesthesia.

Once this is given, he will never wake up.

Athrun looked at the needle, then to the ceiling. Blinked twice.

Closed his eyes.

On the other bed, Cagalli started to gain consciousness. She opened her eyes slowly.

Saw a man beside her with his eyes closed. The anesthesia was first given to him.

She doesn't know who he is, but with some instinct, she began to reach out, with her weak hands trying to reach him.

The doctors were startled upon seeing this.

Athrun once again opened his eyes. His vision was already blurry. But he saw her, reaching out.

He gave her a reassuring smile.

The last words on his mind echoed as silence started to engulf his whole being.

"I'll find the way… I promise…"

He was running- towards a pillar of light. He saw his parents- Lenore and Patrick, smiling at him. Then he saw Nicol, all of his other friends in ZAFT, and all other people the he once knew, but have gone ahead.

He looked back to where he came from.

A vision of a girl, wearing a white dress slowly fades away from him. He ran after her, and called out. But the words were never said.

She turned and smiled.

He knew she must go.

So did he…

The cardiac monitor on Athrun's side showed a flat line.

Cagalli's side told the opposite.

She's alive. He's dead.

One of the doctors went outside to deliver the news.

Kira, Lacus, and Shinn were in Cagalli's private room- waiting…

The doctor came in and said, "The operation is successful. Congratulations."

Kira smiled in relief.

The expression on Shinn's face was unreadable.

Lacus cried.

"Aren't you happy with the news," Kira asked. He looked confused.

Shinn held Lacus and gave her a sorrowful eye.

"No… I can't…" Lacus replied, understanding Shinn's message.

"What?" Kira was a beginning to feel bothered.

When none of the two replied, Kira went straight ahead to the operating room.

He was about to enter the sterile area when two nurses approached him and told him that this place is off limits.

"Sir, you must not go inside."

The door opened. The donor's corpse was being carried, covered with a white blanket. Kira's heart began to feel heavy. He approached it… closer…

Removed the cover.

A sudden cry was heard inside the room. Everyone stopped. Time stopped.

"Athrun!"

Outside, the rain was beginning flood the streets.

The tears Shinn's shoulder was starting to spread deeper...

Lacus was crying in his arms. Never stopping.

Kira was on his knees. Shivering.

The ancient bruise

Of a warrior who has fallen

I see him torn in half…

The surface of the deep melody

My heart will never define

You will never be mine

Too good by nature and sinned by mistake

You will never be mine…