So this ended up being 5016 words of story not even counting the authors note. So I was asked to continue which gave me an idea and from that idea this grew. It was not suppose to be this long but it literally wrote itself. Anyways please comment if so there may be more I left the end to this one open too. Also this Tsuna seems to make Mukuro a better person Mukuro's love for Tsuna is stronger than his emotions for revenge so Mukuro tries to not do things that will bother Tsuna too much and he won't get really mad at Tsuna either.

DISCLAIMER:I do not own Katekyo Hitman Reborn.

Tsuna's POV

They had been together for at least a year now and Mukuro had told Tsuna about his own past. It made Tsuna mad to know what had happened to Mukuro, he had known that the humans did testing on their own but he had never felt a need to interfere in their problems before. But this had happened now to someone he cared about and he regretted not stopping it when he first heard about it. After hearing the truth Tsuna had sat with Mukuro that entire night saying sorry, he could have stopped it, but he never cared enough about humans before too stop it.

Tsuna figured out pretty quick that Mukuro hated the Mafia with a passion, and that they had come here originally to wait for the rest of their group to arrive, well Mukuro called them his pawns, but Tsuna could tell he did care a little about them. He had gotten word a few days ago from Mukuro that a few would be arriving soon so Tsuna would need to go with Mukuro to great them in Kokuyo Land. Tsuna just smiled and said he would and that it didn't bother him at all since he needed some exercise.

Tsuna and Mukuro sat on the porch looking at the small pond from that day, "Mukuro you understand that I can't help you fight unless it's my last choice, which means you would have to be in danger, or anything else I deem worthy. And If I get attacked I'll probably fight back"

Mukuro nodded, "Kufufufu..I get it Tsuna, but why?"

Tsuna looked at his hands, "Because I made a promise with my half sister when she was dying, and I've cherished this promise for a very long time, I don't want to break it unless I have to."

Mukuro nodded in understanding, "I get it."

Tsuna smiled hugged him and whispered, "I'm glad! But I will help by supplying housing, food and a safe place to live, oh and anything else you guys need."

X-X-X-X-X-X-X-X-X

Tsuna and Mukuro headed down to Kokuyo Land when Tsuna could sense some others arriving, there were two in total. They walked quietly as Tsuna led the way but the entire time their hands were locked together.

When they got their Tsuna let Mukuro go first and he just stayed standing right behind Mukuro as if to hide in his shadow, but even then they still kept a strong grip on each other's hand. When they entered there were two male teens standing inside, clearly they knew Mukuro the second they walked in, Mukuro creepily grinned at them, "What took you guys so long, it's been at least a year."

Ken looked at him, "We had to escape prison which took a while and then get money to travel it all added up in time."

Mukuro just said, "That's fine, let's go then, I'm rather eager to return to Chrome."

Tsuna stepped out from behind Mukuro, and Ken must not have noticed the hand grip between Mukuro and Tsuna because instantly he attacked him. But Tsuna did not need to do anything, Mukuro's staff appeared instantly and he blocked the attack pushing Ken away, "Stop it, he is our host, we've been living with him for a long time now."

Ken looked at Tsuna clearly not trusting him, he just scoffed and then looked back to Mukuro who said, "Let's go."

Tsuna led the way still holding Mukuro's hand which must have gotten to the other two because of how much contact him and Mukuro were having. When they got to the barrier he stopped them all and this was the only time he released Mukuro's hand, and he quickly moved his hands and opened the barrier, once they were all in, his hand was quickly claimed again by Mukuro. Chrome greeted them at the door when they got to the temple. She was in a bright purple kimono that she had decided on wearing, it had been the faze she was into lately, wearing very vibrantly colored kimono's. Tsuna smiled and waved to her, "Chrome is dinner ready?"

She nodded, "Yeah and I made enough for everyone."

Tsuna smiled, "Awesome, We'll be right in."

X-X-X-X-X-X-X

It had been a month since the new ones arrived and a week ago a new kid called Fuuta arrived, but clearly it wasn't of his free will. The kid seemed to avoiding everyone except Tsuna, who he seemed to trust to a certain amount. Tsuna would give him food and watch him unless Mukuro needed to talk to the kid, then Tsuna would do other stuff.

Well Tsuna and Mukuro were walking Tsuna almost collapsed but Mukuro caught him just in time, "Tsuna what's wrong?"

Tsuna waited for his dizziness to subside; when it did he stood back up the best he could and looked at Mukuro, "I haven't done any purification in the moon since before they got here so my body's just warning me that it will weaken more without the purification."

Mukuro dragged him to where it would be performed like usual and Tsuna did what he normally did, he just had to sit in the moon light to absorb its energy, he did it in his Fox form since it was more effective that didn't know why but it was a fox thing that he needed to do to live so he did it. Once done Tsuna would stay fox and Mukuro would sit with him. In the moon light, Tsuna's tails would wrap around Mukuro unconsciously, and then they would sit there in to the night.

X-X-X-X-X

Mukuro's POV

He was still debating on how he wanted to start this fight but he would soon, because he would use the new Vongola brat to destroy the Mafia from the inside out. He had started planning it out two years ago before he even came to Namimori, and finally it was almost time to start his plan now. He had already talked to Tsuna and was sure that if in the rare case he was about to lose or something else was about to happen that he would step in, but he didn't think Tsuna would kill anyone unless it was absolutely necessary. He sighed as he watched Tsuna do his purification ritual, he had to do it at least once a week, but if he used an excessive amount of his powers he seemed to have to do it more.

Mukuro stood up when he heard someone standing behind him, Chikusa just stared out the door at the creature sitting on the rock, and he must have thought that Mukuro was creating it with illusions because he looked down, which caused Mukuro to laugh, "Kufufufu..."

Tsuna glanced at Mukuro in his fox demon form and saw Chikusa standing above his lover, he sighed as he stepped down from the rock since the purifying process was already done. He walked over and gently nuzzled his nose against Mukuro's chest showing some affection, Mukuro gently rubbed the fur behind Tsuna's ears and he swore the large fox would have started purring if it was a cat. Then Mukuro stood up and stood between the fox and Chikusa to block his view of Tsuna's body as he changed back, Tsuna got dressed and then stretched his arms, "Chikusa-san you're not supposed to be on this side of the house."

Mukuro laughed, "It seems everyone you meets a little too curious."

Tsuna smiled and laughed, "First it was you, soon after Chrome found out, and now Chikusa, I might as well just shift right in front of Ken then."

Mukuro laughed quite amused, "Yeah, but its fine you wouldn't change back if it wasn't someone you felt you could trust."

Tsuna laughed, "If I didn't want you guys to know I could simply erase your memories of me altogether."

They all just stared at him as he smiled innocently.

X-X-X-X-X-X

Tsuna's POV

It was the day of Mukuro's planned battle; they were sitting on a couch in a large building at Kokuyo Land. Tsuna was quiet as he thought about everything Mukuro had done so far, he didn't necessarily approve but he didn't really care that much about it either. Mukuro had sent his men in to town to beat students up; he understood the purpose but knew it was going to hurt people. But as long as it helped Mukuro get what he wanted he wouldn't interfere, not to mention he had his own reasons for allowing it. Not to mention honestly he didn't care enough about most human beings to stop Mukuro from doing what he would and it was members of the Mafia so he honestly didn't care he knew about what they had been doing although he hadn't heard of the Vongola being bad in years.

Flash back

Tsuna had been with the mafia with his mother for a short time when he was a very young fox demon. His mother knew a lot of the leaders in her days, and in turn he grew up with quite a few of them, one he remembered but wasn't a leader was a man who trained him years ago, he was a hitman called reborn, Tsuna and the young adult where together for a long time in human years. The man actually trained Tsuna on how to use his flames and in hand to hand combat. They got along pretty well be Tsuna and his mother had to leave before they were found out since, even then they didn't tell anyone they were fox demons because they could use their powers without shifting.

Tsuna and Reborn had become good friends back then even though he was just a teenager. He had only lived for 10 years at the time although he still had a teenagers body since foxes get a teen's body in the first 10 years of their life although they don't get their adult bodies until a lot of years later. Tsuna still finds it annoying that his body ages to a teen for a human in 10 years but he's still not of age as a fox until he's a lot older. Well he still remembers the day they left and he said bye, which was the last time he had ever seen Reborn and he was sure the man had to be dead by now.

Flash back end

Tsuna sighed as his mind returned to the present, he smiled as Mukuro's fingers wove together with his, and he calmly said, "I'm fine I just remembered something from years ago."

Mukuro looked at the entrance to the room as he responded, "Was it a good memory?"

Tsuna smiled, "It was of someone I was really close with when my mother took me on a trip to Italy."

Mukuro nodded as someone entered the room, Tsuna sighed as he looked at the black haired man who came in, Tsuna had seen him before; and he said the man's name unconsciously, "Hibari Kyoya."

Mukuro looked back as Tsuna handed him his staff that had been sitting so it leaned on the back of the couch, "You'll need this."

Mukuro nodded as he stood up staff in hand as the black haired teen attacked him, the battle went on for a while until Mukuro used his illusions. It was quickly over after that and Hibari was lying passed out in one of the staircases. Tsuna sighed as he stood beside the passed out body that Mukuro had just left there, he didn't want to interfere but Hibari had always been a help with keeping the people out of this area of the town which in turn kept his house away from sight, not to mention Hibari once beat the crap out of some guys that wouldn't leave him alone well Tsuna was shopping so in a way he felt like he needed to help the man in some way. So he used some of his own powers and warped Hibari's body to a different room in the building that was on a higher up floor away from the dampness and rubble in this one. He didn't want to interfere in Mukuro's plan so this was all he could do.

Hours had gone by and by the end of it there was a group of injured teens in the room, Tsuna stayed hidden in the corner of the room staying out of the fight until a bullet flew past his head only an inch away and lodged in the wall, instantly the illusion Mukuro had up to hid him disappeared. Tsuna sighed as the beaten up teens looked at him and then a baby jumped down from the ones shoulder. Tsuna's eyes flew wide open as he saw who the baby was he saw the child's hat and instantly he knew who it was, Reborn. He soon saw the pacifier and knew why the man was still alive he felt bad for him, he knew about the curse and what it did to the body he even knew why it existed, but he couldn't believe it had happened to someone he knew. Clearly the man hadn't recognized him, or maybe it was because of the shadows but Tsuna just sighed as he glanced at Mukuro who clearly was debating on what horribly wonderful thing he should do next, he definitely hadn't seen this sadistic side of Mukuro in a while. Tsuna just stood up and went and sat on the bench where Mukuro was, he had been hiding since he didn't want to get involved but of course Reborn had to notice him there.

The battle went on rather quickly until Mukuro ended up shooting himself in the head and Tsuna knew that it was a special gun but no one else did so instantly they all moved on to the next target in the room ignoring Mukuro's body all together and heading to where Tsuna was. Tsuna stood up when they were getting to close but before he could do anything there was Dynamite on the floor beside him, it was so annoying. He smiled when he saw Hibari standing with the group, at least he could stand. His smiled faded when the man suddenly attacked; at first Tsuna just screamed to make it act like he couldn't handle himself and then easily he side stepped the injured mans attack. He smiled when the man turned and did it again which he just continued to side step. But suddenly there was a boy behind him to so he knew he couldn't just dodge anymore. Instead when they attacked he blocked the attacks and hit them back a lot lighter then he could. He knocked them both down rather fast but he made sure that with each of his punches he was injecting a little bit of his flame that was the sun portion of his sky flame so that they would heal really fast after he hit them. They were a bunch of teenagers that didn't know what they were doing so he went really easy on them. Once done with those two he walked towards the baby who had a woman standing beside him and a passed out teenager on the ground next to him. Tsuna sighed, "You guys should leave."

Reborn looked up still not having noticed yet, "No."

Tsuna frowned as his eyes got angry, "Leave now Arcobaleno; before you're too late."

Reborn was clearly surprised as he looked up, "Who are you?"

Tsuna sighed as his frown faded, he couldn't do angry so he just continued to sigh, "Reborn you really don't know who I am I mean, I don't look that much different from when we met, and I mean I learned a lot from you too. Although I do have to say I thought you had been dead for a long time."

Reborn looked up as if thinking about what he had said, "But you're only what…15?"

Tsuna smiled, "Well… yeah I look 15, but I was even younger then that when I met you. But I guess back then you did have your normal body to, so maybe you don't remember me anymore."

As if out of nowhere recognition showed on his face, Tsuna could tell he had remembered, "Tsunayoshi; But how?"

Tsuna smiled as suddenly two arm slide around Tsuna's waist, Mukuro was back in his normal body, "How indeed. Tsuna you wreaked my plan and wasted my special bullet."

Tsuna's held Mukuro's hand, "It's not my fault they attacked me instead of staying near your body."

Mukuro sighed, "It doesn't matter you took them out anyways."

Tsuna smiled, "Yeah, but when I hit them I healed them."

Mukuro made an annoyed noise, "Really? What a waste of my time this was. Kufufufu. I'm done this got boring; I can get my revenge some other way."

Tsuna smiled as he whispered in Mukuro's ear, "Thank you."

He turned and the baby jumped up on his shoulder, Tsuna sighed as he looked at all the injured children, he glanced at Ken and Chikusa who were also passed out, he thought for a few seconds and then he stretched his arms out and his tail which were invisible for everyone except him and Mukuro wrapped around all of the injured people along with Mukuro. It was instant and they were out of that place, he had teleported them all back to the temple, when they were back he with Chrome's help laid all the injured out in one room on some futons.

Once they were all laid out properly, Tsuna went around healing them and Chrome went around wrapping the less serious injuries that Tsuna ignored, Mukuro stood in the door way, "Why are you helping them Tsunayoshi?"

Tsuna sighed, "You already know why Mukuro."

Mukuro sighed and started helping Chrome with the wrapping, Tsuna quickly finished up his work and then stood up rather exhausted they had really bad injuries, he turned and headed to the door, "I'm going to the other half of the house, I'll be back to make sure everything's good in a bit, and if you want to you can move Ken and Chikusa you know where their rooms are. Chrome when your done can you make something to eat."

She smiled, "Yes Tsuna I'll get on it once I'm done here."

Tsuna headed to the other side of the house, he had used way too much magic well in this form. He could by all means normally use magic in this form, but only so much. Once he had used too much or too strong of a power his human façade started getting shaky, once on the other side of the house he sat in his human form on the ledge and breathed in the fresh air. He was trying his best to absorb the moonlight to gain strength but doing so in his human form was challenging, and with so many unknown people in the house he knew not to change. Well he was sitting he heard a noise behind him, he looked back, "Reborn…. come out."

The small baby came out and jumped down so he stood in front of Tsuna, Tsuna sighed standing up and closing the panel behind him. He walked over to a small stone bench that he could sit on as reborn once again stood in front of him. Reborn looked up, "How are you alive still, you should be dead?"

Tsuna sighed, "So should you."

Reborn looked down, "Yeah but I have a good reason, and from what I can see you don't."

Tsuna sighed, "Actually, I do."

Reborn looked up and asked, "Then why do you look exactly the same, at least I'm a 1 year old."

Tsuna laughed at that, "I noticed. It's so cute!"

Reborn kicked Tsuna's headed, Tsuna jokingly whined, "Why'd you hit me?"

Reborn smiled, "So why are you actually still alive."

Tsuna sighed, "Because I'm not human, actually when me and you meet I was only around the age of 10."

Reborn's eyes opened wider, "But you were 15."

Tsuna shook his head, "But as you can tell I still look 15, when we met I was only 10 although a 10 year old fox demon is a lot older looking then a 10 year old human child, although a 10 year old fox demon isn't count as being 10 in fox years. I mean even now it's been years and I'm still only 15 in fox years."

Reborn seemed to understand what Tsuna was getting at, "So you're a demon then."

Tsuna nodded, "A pure blooded sky fox demon, one of the last 5 in total and the strongest of all of us remaining."

Reborn just sat quietly in thought, and then Tsuna remembered something as he picked Reborn up, "I have something you might want, I got it about 10 years ago from the 9th Vongola. I didn't want to fight you guys but well Mukuro needed to take some of his anger out on something."

Reborn nodded, "Well, it's not a big deal the next heir to the Vongola needed the training."

Tsuna nodded, "Good, well I bet you'll like what I have for you then."

Tsuna headed across the house to his room, once he got in he began looking through boxes there was a lot of stuff packed up so it took him a couple of minutes to find, once he found it he pulled it from the box. He held a bag in his hand and then he slowly pulled the small chests from the bag. He set them down, and clearly Reborn knew what they were. Tsuna smiled, "Nono told me that he wanted me to test you all before I finally gave them to Vongola Decimo, but after today's event I believe that the guardians are strong enough the only one I'm a little worried about is Decimo I have a feeling that he might not be able to be who you all want him too."

Reborn looked up, "What do you mean?"

Tsuna sighed, "You'll find out soon. Wait for them to wake up and then I'll tell them who I am."

Reborn nodded, "Fine."

It took an entire week for them all to be up and able to move, Hibari had tried to leave but Tsuna had sealed them all in until he could give them the rings. Tsuna and Yamamoto always talked and hanged out along with the others, for some reason the boy who was suppose to be their sky didn't accept any of them or want to be with them. He had a personality that made him seem like he thought he was better than the rest. Tsuna knew that the boy couldn't be the next Vongola or the Vongola would fail, Tsuna also knew he wouldn't be Decimo for another reason that everyone would soon find out.

Tsuna had connected with all of the guardians, he enjoyed their company and they enjoyed his although Mukuro definitely seemed to be showing his jealous side as Tsuna talked to the other boys. Tsuna even was getting along with Hibari who no one could get along with it was almost like Hibari could tell what he was instinctively which allowed the teen to trust in him. The day came when after talking to them all for so long Tsuna decided to give them the rings, even though they didn't have a mist yet. Tsuna called everyone to meet by the pond on the right side of his house because he didn't want his house to get burned down if what he thinks is going to happen does and the kid gets pissed.

Once everyone was outside Tsuna took the two chests out and set them on the stone bench, he looked at the rest, "Okay so everyone I was given the job of testing all of you by Nono years ago when he had decided on who would be his successor at the time and I have accept that all the guardians are ready so I shall give you all these right now."

Tsuna opened the chests and gave the corresponding rings to the guardians and last he gave the sky ring to the successor, and left the mist ring in the box. Tsuna sighed as he turned and set the box down, the boy put the ring on and instantly the rejection process began, it had rejected him almost instantly like Tsuna knew it would. Tsuna could tell right away that the boy was missing the most crucial part to the inheritance of the rings, Vongola blood. The boy pulled the ring from his hand and threw it at Tsuna who instantly as if expecting it caught it gracefully. The boy yelled at him, "What the fuck is this?"

Tsuna just sighed at his language, "Calm down this was obviously going to happen you don't have any Vongola blood in you so you can't be the next heir."

He went to hit Tsuna but was stopped as Mukuro grabbed his wrist, "Watch what you do, he is not someone a piece of trash like you should touch."

Reborn came out and looked at Tsuna, "So this was what you meant, I'll have to talk to Nono immediately."

Tsuna nodded, "I could tell when I was healing him that he wasn't of Vongola blood. I mean I have Vongola blood in me, its old and a lot purer then anyone now. I mean the Vongola's originally weren't human's but that bloodline has been so diluted now that the other blood doesn't have any effect."

Reborn's eyes widened, as everyone else just stared at him in confusion and Mukuro just seemed dumbfounded, Tsuna stared at him with pained eyes, "I'm sorry for not telling you but you hate the mafia so much and I'm from a bloodline before Giotto created the Vongola. That's why Nono had trusted me with the rings."

Mukuro sighed, "It doesn't matter the Vongola weren't the ones who hurt me they were just the fastest path to my goal."

Tsuna smiled, "I'm so glad, I thought at first you might hate me."

Suddenly Tsuna felt a phone fly at him, Leon had turned in to a phone and Reborn had phoned Nono already, Tsuna smiled as he put it to his ear, "Hello, Nono-san."

Nono laughed, "Don't be like that Tsunayoshi you're older than me, remember."

Tsuna smiled, "But In my species I'm not, remember that I'm still only 15."

Nono laughed again, "Fine, then I have another favor to ask of you Tsunayoahi-kun, and It might trouble you a lot more this time. Reborn told me about the boy, and about how his guardians became connected to you faster than him, I want you to take his place, you know you can and in your care I can trust the Vongola and the guardians."

Tsuna was surprised, "But I can't Nono I'm not the right person to lead anyone."

Nono shushed him, "Tsunayoshi you are the only one that I believe can handle the job, you're the only one that the guardians of the tenth generation trust, and I believe you are the only one who could be their sky, tell them the truth about yourself and tell me your answer after you see how they react to who you really are."

Tsuna protested, "But….." Click

Nono had hung up on him, he sighed as he closed the phone and looked at Reborn and mouthed trader. Tsuna sighed as he looked at the boy, "Goodbye."

Instantly he was gone Tsuna had warped him out of the temples yard, he sighed as he looked at the others who were all confused except for the small cow boy who clearly didn't understand. Tsuna sighed again, " Nono asked me to take his place, what do you guys think about it?"

Yamamoto smiled, "I believe you are much more suited to the role then that boy was."

Gokudera comment soon after that, "I couldn't believe I was supposed to be that things second hand man, but if you became Decimo I could do it, I think it would be great, Juudaime."

Tsuna sighed as he got a smirk out of Hibari, "You guys didn't like him at all did you."

Tsuna sighed as he opened the chest and threw Mukuro the last ring, "That's your place in this; I'm not doing this alone."

Mukuro laughed as he slid it on his finger, "I do not like this at all. Not even one bit."

Tsuna smiled because even thought that's what he had said Mukuro was smiling like the Cheshire cat. Tsuna looked at the others before he slid the sky ring on, "I still have something I must tell you before you all except."

Tsuna sighed as he thought about how he should do it; he decided to just show them by shifting instead. So he shifted and instantly they all took a step back he frowned slightly at their reaction, he knew it no one would accept him like this, but to his surprise they all came closer and seemed to rub his fur as if curious, Yamamoto was the first to speak, "So what are you some kind of fox deity."

Tsuna shook his head as he calmly spoke, "No, I am a Fox Demon it's not the same."

All he heard Hibari murmur when he said that he was soft, well the others seemed too smile and accept it as if it was a natural thing. It did actually surprise him that they seemed to just accept it. But he was happy; he stayed that way for only a short time before he went to Mukuro who was holding his clothing. He shifter back behind Mukuro and got dress there too. Once he was done he came back out and slid the ring on, and with that the inheritance was assured, for now.

So this was it, I hope everyone enjoyed, if you have any questions, comment or need me to explain something more just comment below. I hope everyone enjoyed this because I'm not even joking about how fast this wrote itself I mean I couldn't stop typing. Also I honestly didn't expect this to come out until the end of the month, I guess I was wrong.