So... after getting finally back to writing, I decided to change things a bit in the story though I would be add stories much slower... Also fixed spelling errors. Thanks for the reviews guys.

Disclaimer: I don't own Katekyo Hitman Reborn and Rosario † Vampire.

Chapter 1: Target X Mission

(13 years ago)

A brunette child was playing with his blonde father, Iemitsu, at their front yard. Iemitsu easily caught the ball then tossed it back towards his son, Tsuna. Tsuna tries to catch every time his father tossed the ball to him but failed, he's a bit saddened that he can't catch but nonetheless happy that he's playing with his father.

Iemitsu smiled at his son "Don't worry Tsuna-chan, you'll get the hang of it" he encouraged as he tossed the ball towards him again.

Suddenly, Iemitsu felt a presence, a vampiric presence but seemed to be non-hostile. Tsuna being unaware of a presence, he almost caught the ball but then when he faced his father he became confused about why does his father looked troubled.

"Tou-san?" Tsuna called his father.

Iemitsu was staring at their front gate and saw two people looking at them, one of them is an adult and the other one is a child. The two both have silver hairs and slitted eyes, they both emit strong auras.

"Yare yare, didn't expect you guys visit, let alone visit in broad daylight" Iemitsu spoke as he approached the two on their front gate.

"Yeah well. I figured that this might be a nice day to visit" The white haired man replied.

Iemitsu looked back to see his son watching them clueless, he smiled at his son then gestured him to come to his side. Seeing that his son was reluctant, he sighed.

"Tsuna? Come here, don't be scared" Iemitsu said softly.

Tsuna nodded and complied hesitantly as he hid behind his father's leg.

"You seem to have a shaky child. Moka say Hello to Tsuna" the silver haired guy spoke, receiving a nod from his daugther.

"Hello Tsuna-san my name is Moka Akashiya , it's a pleasure to meet you" The white haired girl who was introduced as Moka introduced herself elegantly yet with a monotone voice.

Tsuna just stared shyly as he hid himself behind his father then took a peek of her again. Iemitsu chuckled at Tsuna's reaction, it was a rather amusing to Iemitsu.

"Aren't you going to introduce yourself Tsuna-chan?" Iemitsu asked playfully.

Tsuna nodded "A-ano, my n-name is T-tsunayoshi Sawada it's a p-pleasure to m-meet you" he said sheepishly.

"So now I guess that introduction is out of the way, now I want to know what brings you here in Namimori, Issa" Iemitsu spoke.

Issa chuckled and asked the two children to play for a while "What? Can't a person visit his old friend and have a chat? Besides I have a hunch that those two would be close" The white haired man was introduced as Issa spoke innocently.

"So why don't you two have fun while Iemitsu and I talk for a while?" Issa suggested.

"Yes father" Moka spoke then grabbed Tsuna's arm and dragged him outside.

The Two adults chatted while the 2 child went outside.

"A-ano.. M-moka-san w-what would y-you like to p-play?" Tsuna asked sheepishly.

"Hmmph, let's just go to the park" Moka answered stoically.

Moka is a proud vampire, she would proudly say that vampires are the most superior species in all monster classes or even dare say of all beings, she was disgusted of humans and finds them very weak but it slightly pissed her off when her father told her that humans can be as powerful as vampires.

Tsuna nodded "A-alright" he said nervously

They went to the park, they spotted an empty seat on a swing. Moka sat on the swing as Tsuna offered to push her but just barely since Tsuna isn't really that physically strong. Moka raised an eyebrow, confused at Tsuna if he was pretending to be weak or just really is weak even for a human. Moka thought for a moment, it was strange to her that Tsuna wasn't cowering or running away from her despite how cowardly she acted lately but then she thought that it was because that she haven't told him that she was a vampire.

"You know, I'm surprised that you didn't cower this time" Moka spoke with a hint of astonishment.

Tsuna chuckled sheepishly "Uh, well. It's just I don't feel that you're a bad person" he replied.

Moka raised an eyebrow "is that so?" she asked.

"Yeah, I mean. You look scary, but… I feel like you're really a good person" Tsuna answered.

"How so?" Moka asked confused and intrigued.

"Well, you're scary when you glare… but you're kinda pretty and seemed to be misunderstood" Tsuna answered genuinely.

Moka blushed, she didn't spoke as she contemplated of what Tsuna said. It was odd at how the boy could compliment her and make her blush but easily hid it. Moka didn't sensed any deceit as it was just pure honesty. It took few minutes before Moka decided to break the awkward silence.

"Hmmph, is that the best you can push?" Moka said harshly as she tried to hide her recent embarrassment on a tough persona.

Tsuna: "G-gomene… " he said nervously.

Moka smiled genuinely but hid it, she liked this boy. Suddenly some kids noticed Tsuna and Moka. They watched how Tsuna tried to give a girl a push but kept struggling.

"Hey look its Dame Tsuna trying to push the girl!" Kid#1 mocked as they all laughed at Tsuna

Moka, who seems to not care at all while Tsuna just looked down saddened by his puny strength. Tsuna sighed mentally as he tried to steel his nerve. The group of kids that mocked Tsuna approached them as they surrounded Tsuna and Moka. The leader faced Moka.

"Hey you! Get off the swing" Kid#2 said arrogantly.

"You l-" Moka was about to retort but cut off by Tsuna

Tsuna went in front of Moka "Leave h-her a-alone" he shouted nervously

Moka was taken back, she saw Tsuna in front of her trying to defend her even though she knew Tsuna as a weak person. Moka was confused on how a weak person as him could try to pick a fight with someone who's stronger than him, she could see how Tsuna's knees shake in fear.

"Oh yeah? What are you gonna do about it?" Kid#1 asked smugly.

"I-" Tsuna was gonna retort but got hit at the stomach and fell on the ground.

"What was that?" Kid#1 said smugly as he prepares to hit Tsuna once more.

"That's enough!" Moka exclaimed.

Moka kicked the kid lightly knowing her strength would kill the kid if she used her full strength. Kid#1 was sent back, he struggled to stand up then immediately cried for his mommy while running away from the two. The other bullies just looked at Moka in disbelief and fear then ran towards their homes exclaiming things like 'monster', 'mommy' and 'help'. Moka sighed in disappointment at how pathetic the bullies are.

Moka helped Tsuna up and took his hand and began walking to his house "You know I can take care of myself and I'm much stronger than I look" she spoke.

Tsuna just smiled at her "I know, I just don't want to see anyone getting hurt specially you" he replied genuinely.

Moka blushed but turn away trying to hide the blush "Hmmph"

"and you were soo strong and cool. You're awesome Moka-san!" Tsuna exclaimed in amazement only for Moka's blush deepens.

Moments later they decided to walk back to Tsuna's home, they saw a boy chasing a ball across the street when suddenly a truck speeding ahead. Moka on instinct knows that her vampiric abilities will keep her alive, she dashes on impulse, she pushed the kid out of the way and prepared for impact because of less time reaction to get out of the way. Time went slowly for Moka then suddenly Tsuna pushed her out of the way and got hit by the truck. Moka just stared at Tsuna with such horror on her face, blood flowing out of his body, she didn't even felt hungry despite an image of blood in front of her. Few seconds later, she snapped out of her shock as tears flows down on her face then she dashed beside an unconscious Tsuna and carried him and sprinted back to his house. By the time she got back at Tsuna's house she's been breathing heavily then she began to sniff and told them that there was an accident that she tried to save a boy but Tsuna saved her. Iemitsu was horrified knowing that his son was in an accident, he immediately took his son and rushed through the hospital followed by Issa , Nana and Moka. Issa trying to comfort her daughter while Iemitsu trying to comfort a sobbing wife. Moka was confused why did he pushed her, she thought of how ridiculously illogical choice that was, then suddenly Moka remembered.

Short Flashback. . .

"You know I can take care of myself and I'm much stronger than I look" Moka spoke.

" I know, I just don't want to see anyone getting hurt… specially you" Tsuna replied genuinely.

Short Flashback End. . .

Moka cried remembering why he pushed her. After few hours the doctor came out and told them that Tsuna is in a critical condition and said that Tsuna's chance for survival is dangerously low but has a chance, he would need a lot of blood due to blood loss and asked them for a donor, luckily Iemitsu has the same blood type as Tsuna. Nana shook in fear but steeled her resolve. The doctor said there's a chance and Tsuna's parents are willing to take it. Nana slowly managed to suppress the tears as she tried to calm down. Time passed they bid farewell and gave gratitude to an unconscious Tsuna for keeping her daughter in harm's way. Issa had to barely convinced her daughter to leave since they have been late in their next destination. Few hours passed the doctor suddenly exited the ER. He asked for the two parents and explained that Tsuna's is safe from harm's way, Tsuna also would be expected to have a full recovery after 2-3 months and about the hit on Tsuna's head might cause a loss of memory and it could be permanent.

(13 years later)

"I told you before, I don't want to be the vongola decimo!" Tsuna exclaimed.

"Yes of course, you'll be the Neo Vongola Primo" Reborn replied.

"What?" Tsuna asked in both confusion and disbelief.

Present time. . .

Vongola headquarters

"Iemetsu-dono, Do you really think that it's wise to let Tsuna have that request?" Basil asked concerned.

Iemetsu chuckled lightly "Of course. He's my son after all and according to Reborn, Tsuna have become strong plus he already acquired the true form of the Vongola rings. There's no doubt that Tsuna would easily pull this off" he stated confidently.

"I see, but why did you pick Lambo? Don't you think it may be too much for him?" Basil asked.

"Well, he seemed to be lacking experience. He may have trained seriously but experience would be good for him plus he's still Tsuna's guardian even if you call him too young" Iemetsu explained.

"But…" Basil spoke but was cut off by Iemetsu's amused chuckle.

"Don't worry they'll be fine. I know they would be. I have utmost faith at the two" Iemetsu spoke.

Basil sighed in defeat but can't help but to feel worried about the two.

Namimori, Sawada Residence. . .

It has been quite peaceful in Namimori after the conflict between Milfiore and Vongola. Tsuna and his Guardians had just graduated Middle school (except Chrome and Mukuro). Tsuna grew up to be a mature and caring person. He is still clumsy, but rarely.

"Ehhhhhhhh?!" Tsuna exclaimed in disbelief.

Reborn kicked the back of Tsuna's head "Stop whining Dame Tsuna" he said looking a little annoyed.

"But what do you mean by a BODYGUARD reque… err mission or whatever you call it? Why did you even just said it now?" Tsuna asked in somewhat panicky tone.

"Look you've been already transferred in a school called YOKAI ACADEMY along with Lambo and once you get there, look for the guy name Tenmei Mikogami or so called Headmaster " Rebon replied ignoring Tsuna.

Tsuna sighed "Fine. But isn't Lambo only 13? How come he will come with me and not Gokudera-kun or Yamamoto-kun?" he asked in worry

"Lambo is one of your Guardians and quite capable of helping you, besides you know how much he improved since he trained and tried to stop being a cry baby even though that he still is" Reborn explained.

Tsuna sighed in defeat "Fine, just could I- "he had been cut off by Rebon's snore.

Tsuna sweat dropped then packed up before he slept which include his dying will pills, earphones and contact lenses, wool mitten, Vongola box.

(Next Morning)

Tsuna tiredly woke up then get ready for today. He ate breakfast along with Reborn, Fuuta, Ipin and Lambo. After Breakfast Tsuna and Lambo said farewell to his mother only to be smothered in a warm embrace as the Bus arrived. Before Tsuna can go, Reborn stopped him.

"Tsuna-baka, you and Lambo use this mammon chains. It's would be enough to suppress the energy it emits" Reborn whispered as Tsuna nodded.

Bus Driver opened the door "So you're the transfer students, come on in and take a seat" he said in a creepy voice.

Tsuna & Lambo nodded and seated near the bus driver.

"Just so you guys should know, Yokai Academy is a very scary place" Bus Driver said in a creepy voice

Tsuna gulped and looked at Lambo staring at the road, completely distracted

After they passed a tunnel that seemingly endless, they saw a very hunted-like forest and began to worry. Reaching their stop the bus driver opened the door.

"Here we are, Yokai Academy. Remember what I said Yokai Academy is a very DANGEROUS place so be careful out there" Bus driver said really trying to scare the two, Tsuna and Lambo gulped nervously making the bus driver grin maliciously.

Moments later. . .

"Tsuna-kun, are you sure we're going to a school not a GRAVEYARD?" Lambo asked in worry.

"Kinda, well this is where the bus driver left us" Tsuna answered unsure.

Lambo sighed "What kind of moron would even name the school Monster Academy?" he said in a sweat drop

"I don't know maybe the owner has a weird taste with naming" Tsuna said while he thought for a moment then they both sighed.

As the two walked, they suddenly saw a creepy building.

"Is it me or that building seems Haunted" Lambo said a bit frightened.

Tsuna shivered "I guess so, but don't judge a book by its cover" he spoke trying to be cheerful but would have been convincing if it wasn't for his shaky voice.

"I doubt that metaphorical phrase even works at this situation" Lambo deadpanned.

Suddenly they saw 2 person getting surrounded by 5-6 people and being somewhat bullied. They approached them.

"You guys better leave them alone" Lambo spoke with a false bravado

"Or what?" Dude#1 asked arrogantly.

"Or else you'll be crawling back to your classes" Lambo said calmly.

"Is that so?" Dude#2 asked smugly.

Lambo sighed "Yare yare" he muttered.

The sky had suddenly filled with thunder clouds. The bullies and the 2 person noticed and feeling a bit frightened.

"Thunder s-" Lambo spoke but been cut off by Tsuna

"Lambo!" Tsuna shouted

"What?" Lambo asked confused

"We got no time for this, Can you guys please just stop bothering the two?" Tsuna asked nicely.

"Y-yea, fine" Dude#4 said a bit stuttered.

"F-fine, but you better watch your back you two" Dude#5 said in haste

The thugs left the two for now, then rushed to their respective class. Tsuna sighed in relief as Lambo pouted at Tsuna for interrupting a good fight but inwardly was thankful because those guys were terrifying to him.

"Arigato Mr.?" Unknown Boy spoke earning their attention.

"Lambo, The great and powerful!" Lambo exclaimed then laughed loudly

Tsuna sweat dropped at Lambo "Tsunayoshi Sawada, and you two are?" he introduced himself

"Ah, My name is Aono Tsukune" Tsukune said smiling and held up his hand

Tsuna smiled back and shook his hand.

"Kurumu Kurono" Kurumu introduced herself cheerfully

Tsuna thought for a moment and found that this the perfect timing to ask for directions "Ano, can you guys show us the way to Tenmei Mikogami the guy known as Headmaster?" he asked politely.

Kurumu and Tsukune looked at each other then agreed and asked Tsuna and Lambo to follow. They went to the headmaster and Tsuna and Lambo thanked them. Kurumu and Tsukune dismissed their thanks saying that they should have thank them instead then left to go back to their respective class while Tsuna and Lambo knocked then went inside Headmaster's Office.

"Ah, you must be Tsunayoshi Sawada and Lambo his Lightning Guardian" Headmaster spoke

Tsuna raised a brow "Yes, how did you know?" he asked.

"Family resemblance and for Lambo, well saying Thunder is just a dead giveaway" Headmaster said plainly.

Tsuna's eye twitched "Fine, So what's the reason you asked us to be here?" he asked.

Headmaster smiled darkly "I ask you to guard a certain person" he replied.

"And who is this person you speak of?" Tsuna asked.

"Tsukune Aono, he's somewhat has magnet for trouble" Headmaster answered.

Tsuna remembered Tsukune and Kurumu who was getting picked on, he nodded "We accept your request" he spoke.

"Wonderful, now these are your schedules and the keys to your rooms" Headmaster said then handing them their schedules and keys

Tsuna and Lambo bowed and left the room then headed back to their respective class.