Hello there reader. I am the Forever Lost In Stars. Just call me FLIS if you wish. Anyways here is the story.

BTW all Arcobaleno are adults in this fic.

Summary: When Reborn infiltrated the Estraneo base, his mission was simple. Find and kill #TSC-027. But when Reborn finds out that #TSC-027 is nothing but a scared little girl, he decides to let her live. But you see #TSC-027 wasn't just any experiments. She was raised to be an assassin. She was raised to be undefeated. And for some reason, she possessed the blood of Vongola. Just who was this girl that Reborn had set free?

Disclaimer: I don't own KHR. I can't even draw! TT

The first thing that Reborn noticed when he entered the facility, was the disgusting smell of rotten flesh. It wafted through the air and the smell made him want to puke. He could never get used to the smell of flesh. It was disgusting and foul. The second thing he noticed was the many screams that seemed to echo in the facility. Hiding his presence, Reborn followed the sound of the screams until he came upon a large hallway, with many side rooms, the smell of blood and flesh seemed to be more intense here. Pinching his nose in disgust he went down the hallway. No matter how much Reborn wanted to save the poor experiments he couldn't as that was his target. Not yet anyway. Taking a left and then a right and then another left he reached a side passage from which he could hear voices.

"Never thought the kid would actually be a success." A low gruff voice sounded from the door.

"Yeah. She was so weak and useless when we got her. Even her parents hated her." Answered another voice. Reborn narrowed his eyes. Judging from the little bit of information that Reborn got he had reached his target. The supposed strongest living weapon that the Estraneo Family had created.

Swiftly and quietly, Reborn killed the two men without a sound and swiped a card, that he had found in the back pocket of one of the mafiaso, across the scanner and with a small beep the door opened.

To say that the scientists in the room were shocked would be an understatement. The entire room and frozen, staring at the intruder. Soon the safety switches off guns could be heard and all chaos broke loose. Bullets were flying everywhere. Reborn skilfully dodged all of them and one by one, bodies in white, now red, coats fell to the floor and the sound of gunshots was diminished.

With the noise gone and dead bodies scattered across the floor, Reborn took in his surroundings. Though it had been damaged by the one-sided fight, it was still operational. To the right of the entrance, there were blank screened computers with bullet holes. The other side was a large window to which lead a large room. It was stained with blood and many scratches covered its walls as well as strange burns. That, however, was not what attracted young hitman. No, what attracted him was the large glass water tank that was situated in the middle of the room and the object within.

A small girl, looking to be no older than 10 floated in the water of the tank, multiple wires connecting to her. Covering her mouth was a breather so that she could breathe in the water. He long brown hair spread out like jellyfish, glistening in the reflection of the light. Her arms were strapped to a straitjacket, preventing her from moving her upper body. She was curled up in a ball floating in the water and that's when Reborn noticed something about her. Sprouting out of her back were beautiful orange feathered wings. Staring at the wings Reborn for some reason felt warmth in his veins.

On the glass of the tank, the letters #TSC-027 were inscribed in a gold lining. His target. One shot was all it would take. But even though that was his mission something stopped Reborn. She seemed so...innocent, warm, lonely. No, stupid Reborn don't think that. You just need to kill her and everything will be over. He took a deep breath in but before he could shoot with his gun, he saw flashing in the corner of his eyes. He turned to see a broken computer blinking to life.

Furrowing his eyebrows, he slowly crept to the blinking computer. The screen suddenly showed small footage. A small girl, just like the one in the tank, was strapped to a table, blindfolded. Many scientists with white coats surrounded the table, syringes in hand. From the way the girl's face was scrunched up, Reborn knew the girl was in a lot of pain and couldn't help but feel sorry for her. The computer continued to blink showing different footages. Some were her screaming in pain on the table. In some, she was ruthlessly killing strange humanoid creatures, a dead look in her faint brown eyes. Reborn deepened his gaze as he tried to figure out what was going on. In the state that the computer was in, it shouldn't be able to turn on, let alone show him videos of #TSC-027. The computer continued to show him horribly gruesome videos of the many experiments and just as the young hitman was going to puke, the computer went blank to show two words.

'Help me'. Reborn blinked. Suddenly the computers surrounding him blinked to life, all showing the same words. 'Help me'. Reborn stepped back from the computers and looked around. Every single electricity powered item with a screen held the same two words. 'Help me'. He turned to face the tank, too see the girl no longer curled up. She stared at him with beautiful and captivating yet piercing eyes. Reborn noticed the questioning look in her eyes, looking into his soul. She was doing this. Reborn did not know how but he knew she was the cause of this. He gulped but did not falter under her gaze.

After short staring contest, Reborn sighed and lifted his gun. She tilted her head to the side in a questioning matter but Reborn did his best to ignore it. He shot the bullet but instead of aiming for the control system that allowed her to breathe in the water he aimed for the glass. At first, it wasn't much. Just a small crack in the glass, but slowly that sole crack became bigger, creating more cracks until it covered the tank like a spider web.

With a light tap of her wing, the glass shattered under into a million pieces, spilling the contents inside. Water flooded the floor, making Reborn's shoes wet. The girl was on the floor unable to move as she was still in her straitjacket. Reborn placed his gun back in his holster and kneeled beside her, untying the straps. The girl stopped struggling in it and just stared at him as his expert hands undid her restraints. When he was done, he threw the straitjacket to the side of the room and stood up. The girl sat up slowly and stretched her arms, multiple cracking noises following suite.

She got to her feet only to stumble due to the unbalance of her drenched wings. Reborn caught her before she could fall, unsure of what had overcome him. In response to his offer, the girl grabbed his shoulder her legs wobbling as she took tentative steps. As she reached the door she could walk without support but of course, that wasn't the end.

A piercing bell ripped through the building.

'Alert, Alert. Experiment #TSC-027 has escaped. I repeat, Experiment #TSC-027 has escaped. All security head towards chamber D immediately...' Reborn cursed. It seems that they were caught. Then he felt a cold hand on his wrist and noticed that the girl had grabbed him a desperate look in her eyes as she tugged him to the right. With an audible huff, he followed her as she dragged him through the maze of the mafia base. On the way, they encountered many security guards and monsters, that Reborn recognised from the videos earlier, but were quickly shot down by his gun or, what he later realised to be, fire coming from the girl's hands.

Security doors shut down only to blasted apart by strength that Reborn didn't even know the girl possessed. They took a left, then a right, then another left until Reborn could see the door that he had come in through. The girl stopped and turned to face him and at the same time, his phone buzzed. Reborn furrowed his eyebrows a second time that day and glanced at the screen of his phone. The words 'Hold on tight' were written. Reborn looked up from his phone to the young girl. He huffed and held onto her waist as the girl outstretched her dazzling wings. They filled the entire hallway with their wingspan of at least 16 feet and with one strong flap the girl took herself and Reborn straight through the roof.

She continued to ascend and didn't stop until they were above the clouds. She then looked at Reborn questionably and for once, Reborn could read her face. 'Where do you have to go', she seemed to say. Reborn raised his eyebrow but whispered a location in her ear. She nodded and before Reborn could blink she transformed into a giant falcon, Reborn on her back. The Falcon was at least the size of a horse and Reborn once again was dumbfounded at her power.

They flew for a while before the girl went for a sudden dive, taking Reborn by surprise but he held onto her tightly. Below he could see a beautiful land as well as a big castle that Reborn recognised as the Giglio Nero family.

Gracefully, they landed in the back garden and Reborn slid off the girl turned falcon's back. With Reborn off her back, the girl turned back. She turned to face Reborn, a grateful look in her eyes before her eyes drooped and she fainted. Reborn sighed and picked her up bridal style ready to introduce the mysterious girl to Aria and her family.

She woke up to a warm touch on her cheek. Her eyes snapped open to see a tall woman sitting next to her. She sat up slowly, her wings moving, causing the woman to shift in her seat. The girl blinked taking in her surroundings. Other than the big bed, bedside table and the cupboard, the room was practically empty yet it filled the girl with a warmth that she was not familiar. She took her attention to the woman in front of her.

She had shoulder-length hair with parts of it on both sides of her head braided up and tied at the back. She has sharp blue eyes and was wearing a strange orange pacifier around her neck. She wore a long-sleeved red shirt with a black necktie, black skirt and black high-heels.

The girl tilted her head to the side and continued to stare at the strange woman before her. The woman smiled at her.

"Hello, little one. My names Aria. Reborn rescued you from the Estraneo base. You're safe now." The girl blinked, the names clicking into her brain like gears.

Arai, 9th boss of the Giglio Family. Family: Luce (Mother), Uri (Daughter), Sepira(Ancestor). The 2nd bearer of the sky pacifier.

Reborn, #1 Hitman in the world. The bearer of the sun pacifier. Family: N/A. Tutor of the 10th boss of Carvallone.

The girl tilted her head, as it was one of the only forms of communication that she could make.

"What's your name little one." The woman, Aria, continued. The girl blinked, still for a moment, until Aria's phone buzzed. Aria jumped and looked at her phone screen to notice words on her screen.

'My name is Tsunako, but I prefer Cielo.' Aria smiled.

"Well, hello then, Cielo."

Don't forget to follow, favourite and review! The next chapter will be posted soon!

Tata~