The war was over. Heero blew up Libra and saved the Earth. Afterwards, the pilots went their separate ways; Relena continued her duties as a Vice Foreign Minister, as the others began to adjust to the now peaceful world.

Three months later...

"Dr. Sulivan, you have a call," a nurse called.

Dr. Sulivan looked up from his papers, "Who is it?"

"He didn't say," she answered, "he wants to talk to you."

Dr. Sulivan blinked, then said, "Very well, bring him on the line."

His computer screen lit up, showing a young man who was in his mid-twenties.

"Dr. Sulivan, my name is Professor James," he said.

"Yes?"

"I made an...interesting discovery," the professor smiled.

"And that is?" Dr. Sulivan was beginning to get impatient with this young man.

The professor smiled, holding a syringe in his hand, with a blue liquid inside, "The key to immortality."

This got Dr. Sulivan's attention, "Immortality? But it's...impossible!"

"Oh no it's not," Prefessor James grinned, "We have not tried it on humans yet, though. But we are confident that it works. This formula can give people eternal life, aging no longer exists, diseases are harmless, however, death is possible when its unnatural."

"So, if a person is injected with this formula, they can live forever and diseases do not infect them in any way?"

"Yes."

"But if a person is stabbed or shot, death is possible?"

"Yes, but they are more immune to blood loss, so they have more of a chance to live than a normal person who was not injected."

"Incredible," Sulivan whispered.

"It does have its share of side effects," James said.

"So this was not tried on any humans yet?" Sulivan asked.

"No, not yet. We need a person who is strong mentally and physically, perhaps a Gundam Pilot."

"Good idea," Sulivan said, "keep this formula secret from the public until we are certain it works."

"Okay," James smiled, "I'll inform you if it works well on humans."

With that, he terminated the connection. Sulivan leaned back in his chair, sighing.

"The key to eternal life...but what kind of side effects was he talking about?"

~~~~~~~~~~~~~~

Heero sighed, bored as usual. Duo had called him and asked if he wanted to join him and the guys to lunch tomorrow. Heero accepted, having nothing else to do. He received an invitation to Relena's house. It was a reunion party, of course. Everyone was going, but he wasn't so sure. With a sigh, Heero slipped his coat on and walked outside for some fresh air. It was getting dark out, so not many people were outside, but the less people, the better it was for Heero. For some reason, he feels comfortable when he's alone. Heero stopped when he heard something. He pulled his gun out, looking around. 'I'm being watched', he thought. Suddenly, a man plowed into him. Heero pulled the trigger, but his aim was off. Heero stayed on his feet, but the man continued his assualt. Heero kicked his legs out from under him, and backed off. Suddenly two other men ran out from the shadows and grabbed Heero. Heero elbowed one of the men in the ribs, he back off, bellowing in agony. Heero shot at the other guy, hitting his shoulder.

"Damn kid!" he spat. He reached into his pocket and pulled out a small syringe and again lunged at Heero. Heero dodged, but the syringe caught him in the arm, the blue liquid vanished into his arm. Heero took no notice of this, he was busy enough. The men decided it was time to back off, but Heero wasn't letting them off easy.

"Why did you attack me?" he demanded, glaring at them.

They didn't answer.

"Tell me or I'll kill the three of you, and don't think I won't do it," Heero took the safety of his gun off.

They still didn't answer, one man was smirking. Heero's finger wrapped around the trigger, "What is so funny? Do you think this situation is funny?!"

"Hey kid, what's that in your arm?" the guys smirked.

Heero looked, noticing a small syringe still inserted in his arm. Heero pulled it out quickly, glaring at them.

"What did you inject me with?" he demanded.

They laughed. Just as Heero was about to pull the trigger, he felt dizzy. He grabbed desperately for something, and held onto the side of a building. His vision was clouded with small polka dots, his hearing almost deaf.

"What did you do to me?!" Heero screamed as everything went black.

~~~~~~~~~~~~~

Relena stood on her balcony, admiring the view of her garden. She held the teddy bear Heero gave to her just a couple of months ago.

"I wonder what he and the others are up to," she said softly, "Everyone said they can make it to my reunion party except Heero. I wonder if he got the invitation, or if he just doesn't care?"

She went inside and sat down, her party was in a few days.

"I really hope Heero can come," she said, "I really want to see him again, and thank him for the teddy bear."

~~~~~~~~~~~~~

Heero opened his eyes, realizing he was on the sidewalk. It was now pitch black outside, and the guys were gone. Heero rubbed his eyes and stood up. He rubbed his cheeks. For some reason, his teeth were aching terribly.

"What's going on here?" he demanded, "what did they inject me with?"

Slowly, Heero walked back to his apartment. After getting inside, he locked the door and went into the bathroom, and looked at his reflection in the mirror. He looked paler than usual, and his canine teeth were sharper and slightly longer than they were earlier today.

"What the hell is going on with me?" he asked himself. Next time he runs into those guys, he'll kill them. Literally.

~~~~~~~~~~

What's happening to Heero? Who sent those guys? Find out in part 2! Please comment, I love comments! ^__^ Thanks!