A/N: Welcome to my first fan fiction! I'm really excited for this story since no one else has tried a Hitman Reborn and Dangan Ronpa cross over before. Trust me, I already checked. I don't own any of the following characters though. Hitman Reborn is owned by Akria Amano, and Dangan Ronpa is owned by Kazutake Kodaka. Please remember to favorite and follow. Enjoy!

Thoughts=Bold

Chapter 1: Enter the SDHSL Mafia Boss!

I can't believe that Reborn is forcing me to go to Hope Peak Academy. Why couldn't I have gone to the same high school as Yamamoto and the others? To make matters worse, Reborn was somehow able to convince all of my guardians to this to happen. I, at least, expected Gokudera and Yamamoto to argue on behalf, yet they simply nodded and approved Reborn's suggestion. I just wanted to spend my high school years with all my friends, but now I have to go to Kibougamine Academy. I still haven't figure out how Reborn even got me into this school. I thought this was supposed to be a prestigious school in which only the most elite can be accepted. From what I heard, the headmaster hand picks all the students that meet the two main requirements. The students must be in high school, simple enough, and be the best at whatever they do. Whoever is lucky enough to be picked is supposed to be destined for fame and riches. Apparently, this school doesn't care about what grades you got in middle or elementary school. That's kind of a blessing for me seeing how I barely passed middle school. Seriously, how I accepted into this school.

I sighed, knowing that I would never get an answer from the hitman. At least Reborn gave me my deathflame pills, the Vongola Sky ring, my gloves, and Nat-su's box. I should be fine if I have my stuff. Lucky, my shirt and pants had pockets. I kept Nat-su's box and pills inside my shirt pocket, and I stuffed my gloves inside my pants pockets. I was wearing my orange and white hoodie that was also a short sleeve shirt, and black jeans with extra pockets on each side. I wore my Sky ring on a chain which was around my neck. After I made sure I had everything, I decide to reread my acceptance letter.

Hello Tsunayoshi Sawada,

As the headmaster of Kibougamine Academy, also known as Hope's Peak, I would like to announce you will be a part of the 78th class. You are to be known as the Super High School Mafia Boss. Congratulation!

~Jin Kirigiri

I sweat dropped at my title. This has that arcobaleno name written all over this acceptance letter. Reborn really does want me to become the tenth Vongola boss. I sighed at the thought of being in the mafia forever.

"Hopefully, I won't be called Dame-Tsuna by anyone." I said to myself. I started my walk towards the gates of this gigantic school. I felt light headed as I walked past the twin gates. "What the he-" Then everything faded into darkness.

I regained conscious, but I didn't feel the warmth of the sun on my back anymore. I somehow had my head against a smooth surface. I started to panic. Crap! Did a rival family somehow kidnap me? Reborn will torture me if I allowed myself to be capture. Calm down Tsuna, you probably passed out because you were nervous. I raised my head and studied my surroundings. I saw a chalkboard, a wooden table that would usually be for a teacher, a piece of paper, and several wooden desks. How did I get into a classroom? Did someone carry me here? Okay Tsuna, worry about that stuff later. For now, check whether or not you have everything and that everything works perfectly.

I stood up and forced my hands into my shirt pocket. I grabbed for the first thing my fingers brushed against. Out came Nat-su's box and my pills. I stuck my left hand into under shirt, so I could personally check if I had my ring. I went through too fighting to keep this ring. It better be on this metal chain. Thankfully, the Sky ring was hanging at the very end of the chain. I removed my hand from under my shirt and patted my pants downs. My gloves were in their respectful pants pockets. I took the mitten out and put them on my hands. I unscrewed the top of my pill case and popped a pill into my mouth. I enter Hyper Dying Will mode, an orange flame burned brightly on my forehead and my eye color shifted to orange. I took my ring off its chain and placed in on my finger. I pressed the Sky ring against my forehead so it could be lit. I grabbed my animal box off the desk and placed my ring against the box's single opening.

Once opened, Nat su tackled me onto the floor in joy. He climbed up to my face and licked my left cheek. Wow! He must have really missed me. Usually, he would too scare to show any emotions. I switched off from Hyper Dying Will mode back to my regular self.

"Nat su, why are you so happy? It's just me." I said while trying to calm the miniature lion. However, Nat su unrelenting kept licking me. After a while, I gave into and allowed him to lick me to his little heart's desire.

*Ten minutes later*

"Okay Nat su, I have to put you back into your box." I told him. Nat su looked into my eyes and gave the most innocent eyes, but I knew that I couldn't leave him out. I still don't know anything about the situation I am in. If I left him out his box, I could be potentially endangering him.

"I'm sorry." I turned my head until I facing the chalkboard, and I returned the lion to his animal box. I placed all my stuff into their original pockets. So what now? I know that I have everything and that everything works properly. I guess I'll check that piece of paper. I grabbed the paper and read it. Overall, it said to report to the gym immediately and had a cruelly drawn map. I guess it's giving me instructions on how to get to the gym. I might as well follow the note since there's no other option.

Since the story is taking place in the Dangan Ronpa world, I will be providing basic information about the Hitman Reborn characters that may or may not be appearing in the story.

1. Reborn is this famous hitman that was turned into an arcobaleno, which is basically an adult in a baby body. He was assigned by the ninth boss of the Vongola family to train Tsuna into the tenth boss. As a cover, Reborn was told to be home tutor for failing students, and Tsuna's mom actually buys the story. Reborn is, also, known as the Sun arcobaleno and the strongest of the baby group.

2. Yamamoto Takeshi is by far one of the most loveable characters in Hitman Reborn. This guy is type who is cheerful and upbeat, yet he can be seen as clueless at times. In the anime, he honestly thought they were playing a game whenever the mafia was involved. He's always trying to befriend everyone he meets. Yamamoto is, also, Tsuna's Rain guardian and owner of the Vongola Rain ring.

3. Gokudera is this Tsuna's 'right hand man' and he's willing to sacrifice his wellbeing if it meant Tsuna was going to survive. Gokudera has been stabbed at least two times because of Tsuna. He's the very definition of overprotective. Gokudera has gotten to the point where he's jealous of Yamamoto and Tsuna friendship and constantly threatening to throw dynamite at Yamamoto. This dude doesn't get along with anyone except Tsuna. Lastly, Gokudera is Tsuna's Storm guardian and owner of the Vongola Storm Ring.