A/N: Hi there! This is my first Katekyo Hitman Reborn fanfic and this idea stumbled upon me while I was reading other fanfics. I did it since I always see stories of 182769, so I wanted to try it out. Anyway, enjoy!

I do not own Katekyo Hitman Reborn. But, I do own this 182769 fanfic.


Fighting for What is Mine (Prologue)


"Kyouya-kun." A feminine voice called. The six-year old kid looked at his mother for seconds, then sighing as he lowered his tonfas and walked over the woman. He has been training yet again, hoping that one day he will be stronger than any human alive. As he walked towards his mother, he stopped midway as his ash-coloured eyes met mismatched ones.

"Kyouya-kun, come here for a while." His mother commanded once more. Kyouya looked at her mother; his eyes confused and wavering. His mom smiled and made a hand signal to come closer.

"Please?" And with that beg, the black-haired kid sat near his mother, his eyes never leaving the other kid's body.

"Kyouya, this is Mukuro-kun. Starting today, he is your adopted brother. Please take care of him." She finished her declaration with a kind smile.

Kyouya eyed the blue-haired boy again, and then nodding hesitantly.

"Alright then. I will cook dinner and I'll leave you two here so that both of you could properly introduce to each other." The woman looked as she left the living room to head for the kitchen.

Seconds after the middle-aged woman left, both began a staring contest. Ash-coloured eyes bored into red and blue orbs. It was minutes later before the older one sighed.

"I'm Hibari Kyouya. That is all you need to know about me." Hibari stated; grabbing the book at the edge of the coffee table to read it.

"Kufufu... Is that how you treat guests normally?" Mukuro smirked while looking at the boy with half-lidded eyes.

Hibari glanced at him. "You're not a guest; you are a resident of this house... forever."

"Oya... How cold. How old are you, kid?"

The 6-year old furrowed his eyebrows. "That does not concern you, pineapple." He glared at the pineapple-haired kid. "And don't call me kid, kid."

"Kufufufu... Alright, I'll guess. Is it 32?" Mukuro held his chin, pretending to look serious.

Kyouya growled a bit. "No? Then, 78?"

"21? 18? 39? 60?" Mukuro kept mentioning random numbers, enjoying the fact that the other's patience is fading away. The blue-haired boy kept going, ignoring the dark and heavy aura emitted by the black-haired boy.

Kyouya slammed his book on the coffee table. "SIX! I'm six." He glared at the other, his fists whitening from the tight grip. A child's temper is really short.

Mukuro smirked. "Then, I'm five. I'm Mukuro, nice to meet you... onii-san."

"Onii-san?" Kyouya smirked. "I know no brother."

"Oh...how cruel." He faked a pout as he stared at his so-called 'onii-san'.

The elder glared at the younger. "If you don't wipe that pout off your face... I... will..." Kyouya averted his gaze and seemed to think for a while.

"You'll do what?"

The black-haired child kept looking around, trying to figure out what he will say. Then, all of a sudden, he flinched.

"I-I'll bite you to death."

Mukuro chuckled quite loudly. "Kufufufu... Where did you get that line? Are you a carnivore or something of the sort?"

Kyouya smirked. "It's none of your concern, herbivore." And with that, he attacked using his tonfas, charging towards the younger one.

Mukuro dodged the upcoming attack. I can't play defense forever... The pineapple-haired child thought. His eyes travelled around the room, as if searching for something that could block his attacks. His mismatched eyes fell to a trident lying on the floor, which he grabbed at the moment he had the opportunity. And with that weapon, they are even. Then, a childish yet only-for-adults fight begun.

"Give that trident back! It's mine!" Kyouya shouted, reminding the other that it is his.

Mukuro chuckled lightly. "Make me."

And just like that, the epic rivalry between brothers started.


(Ten Years Later)


"How weak..." Hibari stood up as he lowered his tonfas which is now coated with blood.

"You have such a temper, onii-san." Mukuro stated, his voice low and deep... probably hinting boredom.

Hibari growled, probably because of annoyance. The black-haired man stepped on the face of the man on the ground, simply too tired to even beg for his poor life.

"You're skipping class, herbivore." The prefect positioned himself. "I'll bite you to death."

"Like you aren't skipping as well." The other one just smirked and took out his trident. "You better be prepared, onii-san..."

"I could say the same to you."

After the statement, both charged fiercely, and the only thing in their minds is their way to overpower the other.

Paced footsteps were heard, followed by a scream.

"HIIIE!"

When they glanced at the source of the sound, all they did was stop in their tracks to gawk at a brunette.


That's it. Please do an act of kindness and leave a review.