This story is based on 'When Worlds Collide ' on fanfiction. I really loved the plot but the author won't update ( it's been 4 years ) and since a lot of people liked it, well it's an opportunity for me. . . Hope you enjoy!

P.S. This is gonna be Hiccup x Tsuna + comment down below about what you think of it.

P.P.S. This is a newer, better version.

Disclaimer: I don't own Katekyo Hitman Reborn or How to Train your Dragon. They both belong to their respective owners.

3rd Person's P.O.V.

It was a normal day in the small town of Namimori, the sun was shining, the birds were singing and in the distance was the daily screech of 'hiiieeeee!' As Reborn once again humiliate Tsuna.

"Reborn! What the hell is up with this outfit!?" Said 'Guy' was currently wearing a female kimono. It was orange with white blossoms designs all around. The sleeves were long as it covered his wrists. The obi was white and tied into a small bow at the back. He wore small socks that went a little way past his ankles and some plain sandals. His short, gravity defying hair had now grown to reach the middle of his back and took an extremely fluffy and unruly look. His hair was let out but there was an orange and white flower ornament clipped to the right side of his head with a thin ribbon underneath the flowers. All in all, Dame Tsuna is an absolute goddess.

"And what did you do to my hair!?" The culprit was calmly sipping tea while in his usual suit and fedora and gave his student an innocent look.

"What are you talking about Dame Tsuna? I just improved your life."

"How?!" Tsuna demanded, shrieking.

"As a guy, you're beyond pathetic. You're short, called a loser by everyone, baby-faced, stupid, need me to go on? At least you're something to look at as a girl," Reborn retorts and every insult was like an arrow piercing through Tsuna's body (1) and his soul left his body. It was cruel because it was true.

"About your hair, I applied some experimental hair growth serum while you were sleeping," Reborn then threw the bottle to Tsuna who began to read the back and regrets every word he reads. 'Hair Growth Serum Experiment 32: Side effects may include itchy scalp, bumps, and lumps forming, bleeding and oozing pus and in extreme cases: death.'

Not long after did Lambo barge in with I-Pin chasing him about sharing the candy. Upon noticing Reborn, he let out his signature laugh and shouts "Die Reborn!" And throws a grenade only for it to get smacked back towards him and explode.

"Ga...ma...n" but that didn't work so, as usual, he pulled out his large green bazoo... wait, green!? Tsuna gawked at the bazooka and realises that it was, in fact, green and not it's usual purple which meant one thing. Giannini modified it.

Tsuna was too busy with thoughts that he didn't realise that I-Pin kicked Lambo which made the bazooka fly through the air towards him until it was too late. His very last thought before the bazooka consumed him...

'Damn you Giannini!' And there was a puff of smoke.

When the smoke cleared there was no sign of 10-years-later Tsuna and after waiting about half an hour, Reborn called Giannini with the intent on murdering him.

Tsuna's P.O.V.

I closed my eyes as I travelled through the vortex and began to wonder what will happen to me.

'Am I gonna end up in future with my guardians seeing me in this humiliating outfit or will I end up in the past or maybe I'll turn into a 5-year-old like Gokudera-kun? Agh, the possibilities are endless!' Because my eyes were closed, I didn't realise that I left the vortex until I was submerged in the freezing ocean. I gasped in shock as the icy chill overtook my body and I began to thrash around the water which was stupid, but to my luck, I was able to seize a piece of driftwood and make myself buoyant.

I could barely grasp my thoughts and dimly realised that there was an island not too far from where I was from so gathering my remaining strength, I began to paddle through the waves to the island. It was hard to stay awake and the temptation of sleep was getting stronger, but I knew I had to stay awake.

'Come on Tsuna, you can't give up now! You survived that Spartan Reborn and his teachings of torture compared to that this is nothing!' It wasn't long till I reached the island and hauled myself onto shore and tried to get up, but by then my energy was completely drained and I couldn't even lift a finger.

'Am I gonna die here?' That was my last thought before I finally passed out, but before I did I heard a shriek.

(1) I don't know what to call it but I remember that it happens Ouran Highschool Host Club when Haruhi insults Tamaki