I don't own Fullmetal Alchemist or Fairy Tail. It is owned by its original owners.
A bright yellow light surrounded two figures. One of them was a mythical creature, that only stayed in Fairy Tails. A red dragon spread its wings out to fly through the portal. The figure on the beast's back contained a child of no more than six years old. The boy held a young healthy face while he peacefully slept. The pink hair didn't sway as the creature flew through the light. Indicating that no wind existed within this twisted place. The dragon orange color iris's narrowed at seeing an open door but could not get closer.
"You want passage into this world! Give me something of worth!" An unseen being shouted.
The Dragon felt something snatch at his tail and the beast turned its head. His eyes widen at the endless amount of hands made out of shadows placing themselves all over him. Their shape turned to panic as one grabbed ahold of the child before ripping the boy's demonic spirit from him. The endless hands retracted from the child.
"That was a nice find, that child was part demon. After extracting that piece of him, he's just a strange human. Now, what will you give up as a passage to pass the gate?" The voice asked the dragon.
The Dragon felt his body being pulled into the masses of hands. He would have to act soon for Natsu at the very least.
"Take my emotions away, is that enough?" The dragon asked.
"No, I'll take the leg as payment." The Voice said.
The Dragon couldn't react fast enough as the shadow hands pulled on his leg with great strength. Thus ripping it from his body. The Dragon held in his roar of pain as both of them made it through the open door. The dragon crash landed in a cave as the child on his back went airborne. The boy slammed onto the ground before grumbling in annoyance.
"Igneel, what was that for?" He grumbled.
The Dragon is known as Igneel grimaced in pain his open wound bleeding out blood with disregard of his life. His hold on life began to slip through the dragon's hand. If, this would be his end than he had to tell the child.
"Natsu get up," Igneel ordered.
The boy is known as Natsu sat upright using his hands to rub the sleepiness out of his eyes. One second they were out training in the mountains but looked like they were in a new cave. He must have fallen asleep. Once, his onyx color iris's adjusted to the cave's natural darkness did they widen in horror. Igneel his foster father blended like no tomorrow. The blood kept covering the floor of the cave room.
"Natsu listen to me at least this once, I will tell you of your family." Igneel started.
The boy eyes only went to tears, he didn't care about his parents. There is no point for Igneel to tell him about his parents. Natsu didn't care, only getting help for Igneel.
"But we have to get you help!" Natsu protested.
"It's too late, now shut up and listen. Natsu your real parents died when you were a toddler. I found you with your older brother, Zeref Dragneel. He told me about how he revived you and made you a demon. Yes, you did die as well but Zeref played god and therefore was punished. He could not die unless you killed him. Zeref entrusted your upbringing to me and I failed him. We must have gone off course and ended up at a gate. As payment to enter this it took your entire demonic makeup, which means you are no longer a demon. Now you are Natsu Dragneel the Fire Dragon Slayer. As for my payment, it took my entire leg and that's the end of it but never forget I still love you, my son. Demon or not, I'm still proud of you." Igneel stated.
The life drained from Igneel as his vision blurred and hearing Natsu start to sob. The boy refusing to accept the dragon's death clung to Igneel's arm.
"Come on Igneel don't go! We can fix you up as you do to me! Please stay with me!" Natsu begged.
Igneel couldn't speak as his head went to ground and the dragon slipped in as well as out of consciousness. His eyelid closed due to the huge amount of blood loss. Igneel's last thoughts were of his child.
'I'm sorry.'
Time stopped as if it didn't exist when Igneel took his last breath. Natsu's pupil became dinner plates and the child finally gave up. His life having been shattered at the revelation of his existence. Natsu did sob as the arms tightened around the now deceased dragon's arm. Natsu didn't know how long he stayed with his father figure but once his eyes were raw from the crying did he get up. The information that Igneel gave him started to set in and Natsu could only question his existence. What was he? Sure, Igneel said that his demonic existence was taken from him but that still left so many questions. Did he live a different life? Why couldnt remember anything before Igneel? Why was his brother trying to have his younger brother kill him? Natsu just felt lost for the first time. He held no purpose anymore not with his father dead and unable to help him deal with the information. Natsu went to his feet as his eyes did not hold any life to them. The boy felt broken at the truth hitting him hard. Natsu didn't know where he would be headed but didn't care. Nothing matter to him, not even after he exited the cave and certainly not walking for days without rest. Natsu just kept going, hoping exhausted would kill the boy. He almost got his wish as he fell face first onto a dirt road. The last thing he remembered was hurried footsteps coming behind him. It didn't hold any meaning to Natsu and let his face have a smile. He would meet Igneel again very soon that was all that mattered.
Two days later.
"Look I think he is waking up dear." A woman said.
"The boy is finally coming too." A man stated.
Natsu eyes open to see two people looking down at him with gentle eyes. The woman had long chestnut color hair that didn't match her unusual green color iris's. Her outfit was a lavender dress with a white apron. Her face became one of realization.
"I'm Trisha Elric and this is Van Hohenhiem," Trisha stated.
Natsu look at the man to see his long blonde hair in a loose ponytail with golden color iris's. The man stood tall and held broad shoulders. He wore a white button up collared t-shirt with khaki pants. His eyes hid behind glasses. Natsu could only look away in hatred and disgust. He wanted to die not to be saved.
"Why?"
The pair grew confused faces at Natsu's question. After a moment of neither of them answering did Natsu continue.
"I wanted to die, there's nothing for me here anymore. You should have left me on that road and I could meet my father again." Natsu spat.
Everything went to fast as Trisha pulled Natsu into a deep embrace. The woman couldn't bear to see the child in such a state. Trisha knew of trouble out in the eastern area but she didn't know it became this horrible. The woman didn't want such a young child to stay in this state. Trisha would take him. She would give this boy a loving family.
"No, you have something. You have us we will be your new family. I would have been heartbroken if we let a child die. A child that still has so much potential to live his life. I promise I'll always take care of you." She said.
"Trisha, you're planning to adopt him?" Hohenhiem asked.
The man, in general, became confused at his wife's suddenness to adopt the boy. They already held two kids in their possession. A third would be a strain on the mother. However, Hohenhiem's worries were washed away by Trisha's determined gaze fell on him. She wanted the boy and the woman knew she felt up to the task.
"Yes, I have always wanted another son. Looks like we have one. What's your name?" Trisha asked.
Natsu lost his words, seemingly out of nowhere this woman wanted to adopt him. It felt too good to be true. He couldn't say anything until Trisha looked at him with heartwarming eyes.
"Do you have one?" She gently asked.
Miraculously, Natsu's mouth worked to pronounce his name.
"Natsu."
The woman smiled sweetly at him.
"From today onwards you'll be known as Natsu Elric." Trisha happily stated.
Natsu highly doubts she would keep him in their household. However, he was wrong. Even when Trisha and Hohenhiem found out his true origins. The couple uncovered the truth during an incident in the kitchen.