Title: My Only Guardian Angel

Summary: Sawada Tsunayoshi is a 14-year-old Vongola angel kicked out of heaven by his tutor Reborn, who sent him to fulfill a mission assigned by the ninth Vongola and that is to become Yamamoto Takeshi's guardian angel!

Rating: K+

Written by: -YamaTsuna8027-

Disclaimer: We all know I don't own Katekyo HitmanReborn.

Author's note: Actually I was planning to make this only after I finished Confondere L'Amore. Sadly I'll be very busy for the next couple of months so… I decided to start it now.

Prologue:

Tu sei L'erde

(You are the heir)

An Angel is a messenger of God. A supernatural being that has greater power than humans could ever have. They have the image of a human figure with wings and a halo. A person regarded as beautiful, good, innocent and known as the personification of kindness itself.

Pure white wings flexed themselves tiredly as the said owner of the wings yawned. Soft chocolate brown eyes blinked sleepily as he put a hand on his soft brown locks. His wings folded themselves as he got up from his sitting position. He dusted off invisible dust and was about to leave when:

"Oi Dame-Tsuna. Where do you think you're going?"

The one called 'Dame-Tsuna' gulped as he reluctantly turned around at the sound of the somewhat babyish voice. He squeaked to himself once he saw his baby tutor: Reborn.

"R-Reborn…" The young boy said nervously as he scratched his cheek.

"You weren't trying to run away again, were you?" The yellow-pacifier baby asked with one eyebrow raised.

"O-Of course not!" Tsuna said his hands rose defensively. His eyes widened when he saw Reborn smirk and pull out his Holy Beast called Leon.

"R-Reborn! I swear I w-wasn't-" But Tsuna was cut off when Reborn transformed Leon in to hammer. Without time to think, Tsuna immediately unfolded his white wings and flew off.

"Reborn I'm sorry!" Tsuna said crying animatedly as the baby began to chase him with a hammer.

"So you admit on running away?" Reborn said as mischief shone in his eyes.

"HI-HHIIIEE!" Tsuna said as Reborn caught up with him and proceeded to pummel him.

How did this even happen?

Sawada Tsunayoshi was once an average 14-year-old angel like everyone else. Well truthfully he was below average but still he was normal. Well up until a year ago he was normal… but ever since his tutor came everything had been but normal.

He was just taking a walk one night when the baby arcobaleno showed up. To say he was scared was an understatement… it felt more like he was going to have a heart attack. I mean who wouldn't? He was just straying around as usual thinking about what the other angel kids had been saying about him when suddenly the bush he had been looking at began to talk. Literally talk…

"Ciaossu…" came a weird voice.

"Eh?" Tsuna said as he looked closer at the bush he had been probing with a stick.

"I'm right here Dame-Tsuna." Came the same voice but this time accompanied by a small kick.

"I-Itte!" Tsuna said as he fell head-first on the bush he had been looking at. "What did you do that for?" He said as he turned around only to come face to face with a baby. He could feel his eyes widen as his eyes traveled towards the pacifier on the baby's neck.

A-An Arcobaleno? Here? He thought with awe.

"I see you noticed my pacifier, Dame-Tsuna." The baby said. "I guess you're not as slow as you look."

"Y-you're one of the Arcobalenos of heaven! What are you doing here?" Tsuna said gulping nervously.

The Arcobalenos are known as the 7 strongest babies in the world who guard the Trinsette set from any harm or more likely from evil hands. The Arcobalenos are angels that walk out of time, meaning they never age at all. And the Trinesette set is composed of 3 sets of 7 rings: the 7 Vongola Rings of heaven; the 7 rainbow-colored pacifiers that the arcobalenos wear; and the 7 Mare rings of Hell.

"W-what are you doing here?" Tsuna asked again.

"I came here on the orders of the Vongola Nono." the baby said calmly as he walked towards the obviously nervous boy.

"The Vongola Nono!" Tsuna said squeaking in shock.

The Vongola Nono is the 9th generation Boss of the Angel Council. The Angel Council is composed of the 7 most powerful families in heaven. And on top of those 7 families is the Vongola family, and the one that leads the Vongola family is none other than Vongola Nono: Timoteo Vongola AKA the leader of the Angel Council.

"That's right Dame-Tsuna." The baby said smirking.

"M-matte! How do you know my nickname and what does the Vongola Nono want with me?" Tsuna said watching the arcobaleno in front of him warily.

"First of all Dame-Tsuna nothing goes through my information network without me knowing about it." The baby said. "And second, Vongola Nono wants you to be the Next Vongola heir."

Then there was silence…

3…

2…

1…

"WHAT!" Tsuna said shocked. "What do you mean the next Vongola heir?"

"It means what it means Dame-Tsuna." The baby said as he took out something that looked like a lizard.

"B-but m-me? V-vongola h-heir? Why? I'm not related to the Vongola!" Tsuna said freaking out. "A-and if your information network is really that great then you should know that I'm not good at anything! Especially in becoming the heir of something!"

"Very good Dame-Tsuna." The baby said smiling. "Truth to be told, there were 5 Vongola candidates at the begin."

"W-What happened to them?"

"Well 3 of them conveniently- I mean mysteriously died."

"What about the other one?" At these words the kid's eyes shadowed.

"The other one turned into a demon." he said monotonously. Tsuna gulped.

Demons are angels who turned evil.

"But why me! I'm not related to the Vongola!"

"Wrong…You are definitely related to the Vongola." the baby said as he stroked his pet lizard.

"W-what?"

"You are the direct descendant of the Vongola Primo."

"Again… What!" Tsuna said unbelieving.

"Just shut up and absorb the information quietly Dame-Tsuna. To make a long story short you are the only qualified heir left to becoming the Vongola Decimo, and because of that I was sent here to train you in becoming the boss." The baby said as he watched his pet change forms.

"W-wait you haven't told me your name yet… and what's that you're holding?" Tsuna said nervously.

"My name… is Reborn and this is my holy beast Leon." Reborn said petting the lizard.

"H-holy beast?" Tsuna said thoughtfully.

Holy beasts are animals said to be given by the Gods to the seven strongest Arcobalenos. These beasts were made to help their masters in protecting the Trinsette set.

"I thought they were suppose to be bigger…" Tsuna said unconsciously. Reborn smirked as Leon turned into a hammer and hit Tsuna in the head.

"Oww! What was that for?" Tsuna said whining.

And that was pretty much, how everything started…