A/N: This is just the first part of the Arcobaleno being introduced to the club. Monday to Wednesday. I've been focusing on school lately but right now is my spring break so i wanted to update this week. Sorry for taking so long, I'll try my hardest to get the next part up soon and update my other stories. Thanks for sticking with me. Enjoy!

***.***** Line Break *****.***

A tall man with onyx eyes and spiky hair the same color stood in the hall in front of the double doors he was about to enter. The man wore a comfortable black suit with a yellow shirt underneath and a black tie. On his head, covering his spiky hair, was a fedora with a yellow band around it. The hat shadowed his eyes but didn't cover his signature curly sideburns.

He opened the door and took off his hat in respect for the older man behind the desk.

"You need me for something Nono?" Reborn asked.

"Reborn, I am getting too old for this position and I fear something may happen to me before I can pass this job onto someone else of primo's bloodline. My sons have all passed but there is still someone who can take up this position." Timoteo, the Vongola's ninth mafia don stated.

"And who is this person Timoteo?"

The Don smiled. "I think of him as my grandson. The last time I saw him was when he was 5. He's a very sweet and gentle child, too much so that it pains me to bring him into our world, but he's the only choice I have left. I need you to go into the school as a teacher because..." Nono hesitated his face twisted into a slight frown. "-Its best you just read the file." Timoteo slid a light brown folder to Reborn who picked it up and read it.

Name: Sawada Tsunayoshi

Age: 15 DOB: 10/14/****

Eye color: Caramel brown

Hair color: Light brown

Grade: First year of High school

School: Attends Namimori Mountain Academy, a boarding school that goes from Daycare to University.

Personality: Shy and Clumsy.

Note: There has not been any updates on him since he entered the school at age 7.

Mother: Nana Sawada. Brown hair, brown eyes

No other known information

Father: Iemitsu Sawada. Blond hair blue eyes. Alias: Young lion of Vongola

Leader of CEDEF. Direct descendent of Vongola Primo

There was a picture of Tsunayoshi in the folder. The picture was taken from the side and Tsunayoshi didn't look aware of it. His hair looked gravity defying and his eyes were warm. He had a small smile and Reborn could see the glimmer of a chain around his neck. Is he wearing an earring. Reborn thought as he stared at the small gold stud in the kids ear. Reborn closed the folder feeling surprised.

"There really have been no updates?"

"My last son, Xanxus, and the rest of Varia attend that school but he refuses to give any updates other than 'the kid is fine', that's why we at least know Tsunayoshi still goes to that school."

"Did you assign Xanxus to watch over Tsunayoshi?" Reborn questioned. Xanxus used to really want the position of Vongola boss but he suddenly stopped caring about it a few years ago and then disappeared along with the rest of Varia.

"I never did. He just left one day and a few years later he called and told me he was at a university so he could watch over Tsunayoshi. He never told me what he was studying to be."

"But if he's watching over him why are there no updates on Tsunayoshi's progress?" Reborn was getting more suspicious of this situation.

"He said it's for Tsunayoshi's protection. This is why I need you to go to that school. Find out what Tsunayoshi needs protection from and while you do that, train him to be the next boss. Tsuna knows nothing of the mafia so you'll have to tell him."

"I understand. Do I have permission to take whomever I want on this mission with me?" Reborn inquired while a small smirk slipped onto his face.

Timoteo raised his left brow in a questioning manner. "Who do you have in mind?"

Reborn started to chuckle. "Some friends of mine."

***.***** Line Break *****.***

A Week Later (Monday)

Tsuna yawned as he walked into the bathroom in his room. He sluggishly brushed his teeth and washed his face. He then took a nice warm bath that made him feel refreshed and finally fully awake. His lion, Natsu, opened one eye as Tsuna walked out the bathroom and gave a slight purr as Tsuna pet him on his way to the closet. He went back to sleep when Tsuna turned his back on him to open the closet door.

Tsuna put on a white shirt with an orange sweater over it and some blue jeans. Namimori mountain academy had a uniform but the helpers club members rarely ever wore the uniform, and if they did, it was customized to their personal taste. Which is luckily a privilege given to them only. Actually the school is too scared to stop them.

Since their club does A LOT of the work in the school- act as the student council at times, organize events, teach some classes, tutor, go to meetings for teachers, file papers, enforce the rules, keep the peace, act as the principal at times, guard the school from intruders, and many other things- they get a lot of special treatment. If the helpers club refuse to work then a lot of things in the school would stop working.

It was around 5:30AM Monday morning, and he needed all of that time to get what he needed to do, done. Today it was, Takeshi's, Hayato's, and Tsuna's job to wake up the kids and get them ready for school. School starts at 8 for the elementary students, 8:30 for the middle schoolers, and 8:45 for the high schoolers. College students had classes whenever they had classes. They had to make sure the kids actually stayed up and got dressed then Tsuna had to help make breakfast for them and, by default, the rest of the club.

The helpers club dorm house had maids, butlers, chefs, all the household servants but the helpers club liked to do things on their own. They, of course, knew they couldn't do everything so they settled with taking care of the house on weekends and cooking breakfast, and taking care of the kids everyday while the household servants did everything else.

Tsuna walked into the common area that connected his room to Takeshi's and Hayato's room (Tsuna's room is between both of theirs). They were sitting on the chairs going over last minute work as they waited for him. The common area for those three rooms has some chairs, a TV with a game console, a table and a microwave. He went to the wall and picked up the ring of keys hanging there. That ring had the master key card and then the keys to everyone's door.

Everyone in their dorm belongs to the helpers club because they built the dorm for themselves. Everyone also had three people they shared an area with.

They left the common area and entered the hall. Walking left they passed an intersection then held one door which Takeshi went to, a door in the middle of the hall which Tsuna went to and Hayato went to the door next to Tsuna's door. The heavy wooden door Tsuna stopped at was labeled:

Mami

Lambo

I-pin

In the same order of their rooms. He opened the door into another common area that was filled with toys, stuffed animals, beanbag chairs (one of them looked like an actual bean bun) and pages of homework spread out on the table.

Tsuna opened I-pin's door first. He walked to her bed to see that Lambo was sleeping next to her. Those two are like siblings so it wasn't strange to see them sleeping in the same bed. Gyuudon, Lambo's bull was in the corner sleeping and was slowly flicking his tail in his sleep.

"I-pin, Lambo its time to get ready for school." He gently shook them both and watched as they slowly opened their eyes. I-pin yawned then rolled closer to Lambo and went back to sleep. Lambo just closed his eyes and started breathing deeper.

Tsuna sighed in exasperation. "If you don't wake up now you won't get what you want for breakfast first." At those words their eyes instantly shot open and they rushed off to get ready.

Tsuna chuckled as he walked to Mami's room to get her ready.

Mami was easier to wake up. At 10, two year older than Lambo and I-pin, she was a bit more responsible because she entered the double digits. With just the call of her name she was up. She rubbed her eyes sleepily and yawned but still got out of bed to get ready. Mami had red hair and red eyes with a strange symbol in them. She is the little sister of Enma, Tsuna's childhood best friend, who is very protective of her since he saved her from being killed when they were younger.

Tsuna went into their common room after he made sure she had all her clothes for the school day ready.

Lambo and I-pin came out first then Mami walked out her room. Tsuna turned and went to the door leading to the hall and they followed.

***.*****Line Break*****.***

Breakfast was like a restaurant, Sometimes it was serve yourself other times you ordered food.

Today it was orders. Tsuna, Kyoko, Haru, Chrome, Takeshi, Lussuria, and Squalo were the ones taking orders and cooking. There was a set menu that day which everyone ordered from.

Eggs / omelette

Bacon

Pancakes / Waffles (any type and any syrup)

Oatmeal, Porridge, Cream of Wheat, grits

Cereal ( any type)

Toast ( any jam or bread)

Miso soup

Any fruit in any way

Natto

Hot Drinks/ Cold drinks (we probably have what you want)

They had a few dining halls. Today they were in the one that was set up like a restaurant. There were many different tables to sit at all decorated with black cloths.

Tsuna and Haru went around and took the orders of the sleepy residents of their dorm. Seeing people slowly come down the stairs still in pyjamas just for breakfast was a normal sight. Some of them would go straight back to bed after breakfast, get ready for or go straight to class, or go on a morning run around campus.

The younger kids always got fed first because their classes started earlier and because everyone older than them ate more.

The kids and Enma sat at a long dining table. In their club, there are around eight kids. All of the kids were in the same section, Information, because it was easier for younger kids to gather information. People don't believe kids would understand what they are talking about so their tongues are more loose around children. The youngest one there was 8 and the older ones were in middle school.

Even if there wasn't a menu Tsuna could easily tell what everyone would want that day and which food would help their mood for the day. He learned a lot from his mother and his Hyper Intuition made it even better.

As everyone settled and ate their breakfast Tsuna spoke up. As his voice rang around the dining hall a hush came over rowdy room.

"I heard that there will be new teachers in the school Xanxus, do you have any idea who they might be." Tsuna was looking at his cup of green tea as he said this but he slowly raised his head to stare at Xanxus.

Xanxus snorted. He had an omelette with steak bits in it along with some chocolate chip waffles and a cup of coffee. "Yes that's true brat. My advice about them is to be careful. They're friends of Mammon." He was wearing a navy-blue shirt and black jeans. Xanxus is Tsuna's older cousin and a teacher at their school along with the rest of Varia other than Bel and Fran.

The Varia included Lussuria, Leviathan, Squalo, Mammon, Fran, and Bel. Bel, or Belphegor, is 17, in his last year of high school. Fran is 12, the same age as Yuni and Fuuta, while Nosaru and Bluebell are 13. They're all either in the last year of Elementary school or first year of middle school.

"You owe me for that information." Mammon added. Mammon wears a full body hood that covered her face and figure when she goes out but right now she was a wearing black pyjama top and bottom with prints of money with wings on it. She had indigo hair with purple upside down triangles on either side of her cheek. Her eyes were orchid-purple but she mostly had them covered by her bangs.

"Count it as an early birthday present for me." Tsuna grinned, his eyes shining in mirth.

Mammon huffed but otherwise agreed.

Tsuna continued to speak. "Since we are not sure what they are coming here for, proceed with caution but otherwise do what you will. Mammon, I will not ask you for information on your friends, I'll leave it as a surprise for all of us. Now continue eating everyone, let me not keep you from your breakfast."

As soon as everyone was sure Tsuna was finished speaking the noise that went along with breakfast started up again. There was laughter, shouts, taunts, and the overall closeness that came along with people who've known each other for years.

Tsuna smiled at his makeshift family but then let out a quiet sigh. My intuition is telling me things are about to change.

***.***** Line Break *****.***

Reborn walked into the rowdy class of first-year high school students. As their eyes landed on the handsome new teacher a hush fell across the room.

His eyes scanned the room for the familiar head spiky brown hair. His mouth slipped into a frown when he didn't spot his target. He did, however, see three students that were not in uniform. He was sure he got the class where Tsunayoshi Sawada was in. He turned and wrote his name on the board to hide the irritation on his face.

"My name is Reborn, that is all you need to know for now. I am your new homeroom teacher and math teacher."

A student raised her hand timidly and spoke when Reborn nodded to her. "Reborn-sensei, what happened to Tomoda-sensei?"

Reborn smirked a dangerous glint in his eyes. "Some criminal records on him were pulled up. He won't be back."

"Now tell me, why are three of you not in uniform?" Reborn frowned. He did not expect he would get students in trouble on the first day.

A girl with long dark brown hair stood up. She was wearing a black suit and looked very professional. She also wore silver earrings. "I am Kurokawa Hana, the class representative. Don't worry about us not wearing uniform. You'll know why soon enough." She sat down after saying that.

That was very vague. None of the other students seem bothered by any of them wearing no uniform. And what am I going to learn soon?

Reborn growled at the answer. His killing intent slowly seeped out.

Curiosity and fear circulated the air. Curiosity on what happened to their old teacher and fear of the new one.

Reborn ignored how he made the class feel- although the three students wearing no uniform weren't affected- and spoke. "Now, I'll take attendance. Answer when you hear your name."

Reborn read the names on the attendance only to find that three people, other than his target were absent.

"Does anyone know where Sawada Tsunayoshi, Gokudera Hayato, Enma Kozato, and Yamamoto Takeshi are?" Reborn questioned.

The entire class looked toward the door -which Reborn thought was kind of creepy- and waited. Reborn decided to not say anything and just observed the door as the students did.

The class door swung open and in walked two boys, none of them wearing uniform and both with silver studs in both ears.

"Sorry about being late, we had to take the little ones to class and they decided today was the day to be difficult. You're our new teacher right?" Yamamoto glanced at the board. "Reborn-sensei, its nice to meet you. I'm Yamamoto Takeshi and this is Gokudera Hayato-" He pointed to the silver haired boy who gave a fierce glare.

What is smoking bomb Hayato doing here?

"Tsuna and Enma won't be here today." Yamamoto stated with a smile.

"And why is that? Are they sick?"

"Haha. That's confidential information." Yamamoto rubbed the back of his head.

Confidential? Isn't being a teacher here one of the most informative positions.

"Just sit down." Reborn growled. The first day wasn't going so well.

*****.*** Line break ***.*****

As soon as Tsuna and Enma walked into Lambo and I-pin's class with them they were instantly bombarded by the children. Every kid in the class left their seats to come hug the two boys.

"Alright that's enough. All of you, sit down." Tsuna said sternly to the children who hurriedly rushed to their seats.

"Ah thank you for that but won't you two be late for class?" The new teacher questioned. He was a young man with purple hair, piercings, and makeup on.

"We're your assistants for the day Skull-sensei. I'm Enma Kozato and he's Tsunayoshi Sawada." Enma said quietly but confidently.

"Aren't I getting an experienced teacher to help me?" He asked feeling very surprised.

"I assure you, we are more experienced in working with these kids than most teachers." Tsuna smiled reassuringly.

Tsuna and Enma proved they were experienced with the kids. They knew which kid was having problems before they said anything, they knew how to calm the kids down, they could peacefully break up fights and helped Skull remember each kid. They both kept the kids focused on the lesson and helped Skull explain things to students.

"Thank you for you help today, I couldn't have asked for better assistants." Skull exclaimed gratefully.

"Its no problem, we're always happy to help the little ones." Tsuna smiled. We already got our payment but it's always fun working with the kids.

"Now everyone, be good and don't trouble Skull-sensei." The kids pouted but otherwise agreed.

"Bye Skull-sensei, see you some other day." Enma waved as him and Tsuna walked out the class.

Tuesday

"Its nice to see that you finally came to class Sawada Tsunayoshi, Enma Kozato. I hope you two won't be skipping anymore days."

Tsuna gave a small barely noticeable smirk. "I can't promise that Reborn-Sensei." Then him and his friends sat by the window at the back of the class. Tsuna by the window, Hayato by his left and Takeshi in front of Tsuna. Tsuna walked across the room with a feline grace. Respect for him shone on the eyes of the students.

Reborn gave his own smirk. There's a lot more to Sawada Tsunayoshi than the report says. Although the report barely said a thing.

Tsuna yawned and put his head on his desk. "Why are you two not as tired as I am. You stayed up as long as I did."

Hayato gave a sheepish smile and Takeshi laughed quietly. "We found time in the middle of the day to sleep." Hayato replied.

Tsuna playfully glared at them then yawned again with his eyes closed.

Reborn hears Tsuna's breathing slow down and deepen, a sign that he had already fallen asleep. Reborn felt annoyed that the teen fell asleep before even hearing him teach.

Reborn threw a piece of chalk at him in order to wake him up. Before the chalk could reach Tsuna it was caught by Yamamoto Takeshi who gave Reborn a cold glare that would have downed a lesser man. Reborn only raised his eyebrow. This kid would make a great hitman.

"What was that for sensei?" Reborn could hear the icy tone his voice took.

"I was just waking up a sleeping student." He simply replied in an even tone.

The silver haired teen was bristling in anger. Hayato opened his mouth to say something -shout it really- but looked at Tsuna and took some deep breaths to calm down.

"Let him sleep, he does a lot of work." Reborn could hear the anger in his voice.

Tsuna slowly raised his head and sleepily blinked his eyes. "Its OK Hayato, Takeshi. I'll stay up for our new teachers first day with me." He stated sleepily.

The two boys looked at him worriedly but otherwise agreed.

For the rest of homeroom and half of the math lesson Tsuna stayed awake and attentive. He answered every question he was asked correctly.

Tsuna leaned toward Hayato and started whispering.

"Hayato, are there any task we have to complete?"

"Today Takeshi has been requested to help out the kendo club and Enma is going with him. Ryohei and Aoba are helping the new teacher with the middle schoolers gym class. Haru and Kyoko are helping teach the cooking club. Hana and Chrome are helping with the school budget. Hibari and Mukuro are going into town to protect a store from Yakuza. And you and I have to take the kids back home."

"Send Daisy and Bel as back-up for Hibari and Mukuro."

"Yes Boss."

Unfortunately, but fortunately for the helpers club, Reborn didn't overhear their conversation.

Reborn kept an eye on Tsuna for the entire class time. He tried to find him during lunch but it was like he vanished. I'll try to find them at lunch tomorrow.

*****.*** Line Break***.*****

"We're eating in the cafeteria tomorrow." Tsuna declared to his friends.

They usually ate in the underground area that was connected to their house -and that's where most of the helpers club are now- but today Tsuna wanted to eat lunch under the blue sky. Right now it was only Tsuna, Takeshi, Hayato, Mukuro, Chrome, Lambo, Fuuta, I-pin, Ryohei, and Hibari were on the roof.

"It's fine with me Tsuna but why tomorrow." Gokudera questioned.

"We usually go on either Wednesday or Fridays Hayato." Chrome corrected.

"Its not exactly weird for us to use the cafeteria on those days. And besides, I have a feeling something interesting is going to happen there tomorrow. Actually its more like something that needs to be done." Tsuna looked lost in thought for a moment.

"By the way, Mukuro, Hibari, aren't you two supposed to be heading to town now." Tsuna turned to look at them only to find both his friends already gone.

Wednesday

By Wednesday Reborn found out that the people Tsuna was usually seen with rarely ate in the cafeteria. Reborn noticed many students look at the empty table in the middle of the room with mild disappointment.

"I guess no one in the helpers club is coming today." He heard a student say to another in a disappointed voice.

The helpers club? I think that was the club the principal told us to ask if we needed anything. Maybe I'll check them out sometime.

He suddenly heard some students both male and female- squeal in delight.

"They're here! They're coming today!" A girl announced happily. There were cheers from the entire cafeteria.

"Who's coming?" Reborn asked a teacher that was also eating in the lunchroom. Reborn was sitting at a table with Fon and Colonello along with the other teacher.

"Oh, you're a new teacher so you wouldn't know much about the helpers club."

"What does the helpers club do?" Reborn questioned.

"They do a lot of work for this school and its students. This school is respected because of them. People come from all over to ask them to do jobs. They're identified by the earrings and bracelets they wear, silver for the members and gold for the leaders. Look there's some of their members coming in now."

A club that has a lot of sway in this school. I wonder who runs it.

The lunch room went quiet as eight people walked in. Reborn was shocked by who he saw come in. Although he didn't show it at all.

"Ah, that's them. Sawada Tsunayoshi is the leader of the club. Gokudera Hayato and Yamamoto Takeshi are in your class with him. Ryohei Sasagawa, the white haired one, is a second year. The twins, Rokudo Mukuro and Chrome Dokuro both blue haired and Hibari Kyoya, the black haired one are seniors. The child is Lambo Bovino, Sawada Tsunayoshi's charge."

The group settled around the round table and the entire cafeteria remained silent.

"Should we play blackjack today?" Tsuna stated which made his friends give him wary looks.

"I promise to only be the dealer." Tsuna said sheepishly. His hyper intuition usually caused him to win these games. The wary looks disappeared and they all agreed.

"Before that, you need to make the announcement of the event going on next week." Mukuro commented.

"Oh yea, that event." Tsuna exclaimed as he climbed on top the table.

"Attention everyone, the helpers club will be having a school wide event next week Friday."

The entire cafeteria erupted into cheers and applause.

"We will be having a freeze tag event next week. If you would like to join sign up at our clubhouse. You will be split up into one of the seven teams. If you don't sign up quickly you may not get the team you like. Teams will be announced Wednesday. When you receive your assigned team report to your team leader where you will be debriefed on your role in the team. Students from every grade will be allowed in the event, from elementary to university level. Teachers will be allowed also. I hope a lot of you decide to join. Thank you for your time." Tsuna gave a charming smile and bowed at the end of his speech.

Excited chatter erupted around the cafeteria.

"Everyone is getting so excited over freeze tag." Reborn commented. It didn't make sense why all the high schoolers wanted to play freeze tag.

"The games and events the helpers club hold usually have a lot of new inventions and gadgets. There is a prize given to the team who wins." The teacher answered the unasked question.

"Alright so lets get started with this game." Tsuna said as he settled back in his seat. He pulled out a deck of cards from his pocket and started dealing them out.

Reborn didn't notice the teacher he was previously talking to slip out the cafeteria. He didn't notice the teacher get covered in mist before it disappeared to reveal a person whose entire face was covered by a hood.

"There's your extra gift Tsunayoshi. Making him curious enough to come to you directly wasn't hard." Mammon said as he/she walked away from the lunchroom.

A/N: The next part will come up soon. If you would like a certain arcobaleno to teach a certain class just tell me. I'm just having a bit of trouble with their classes and grades the others will teach.