Ugh, I had complications with this, I somehow lost my rewritten copy of this one-shot and so I had to go back to my first draft and then rewrite that, which I was not a happy trooper about! But I finally redid it, even if it won't be as good as my lost one *pouts* I hope you all enjoy it though!

Title: Strength of a petite Sky

Rating: K+

Author: SecretsTellNoLies

Story type: One-shot

Genre: Gen

Summary: Observing a sparring session with his student and Xanxus led to Reborn noticing something interesting about his student. On a whim he decides to delve into this mystery and find his answer.

Warnings: none

Disclaimer: I don't own KHR or the character's, Amano Akira-sensei does. All I own is the plot.

Strength of a petite Sky

When Tsuna broke Xanxus' leg during training one day, an interesting thought popped up in Reborn's mind.

'Had Tsuna ever broken a major bone?'

Looking back, the answer was a clear and definite no.

Which led the hitman to wonder why? Because surely the boy would have had a major break somewhere? But no, he hadn't, despite the fact that he was often bullied and abused when he was younger. Then when Reborn arrived on the scene he gleefully took the baton, relinquishing it only when facing one of Tsuna's enemies-turned-friends. With his 'training' he had fully expected all manner of injuries, just as he had experienced with Dino.

Upon delving into it, he got his answer, as layered as it was. Sawada Tsunayoshi was strong. Many may think that 'strong' and 'Tsuna' should never even exist in the same universe, but his kind of strength was the resilient type. The type that refused to be knocked permanently to the ground, no matter how hard one tried. For Reborn, that strength had been both an annoyance and something to secretly be proud of.

By this point Reborn was becoming quite intrigued, if he was so inclined he could delve into the mysteries that made up his no-good-student for a good portion of the day (he wouldn't however, he had coffee to drink, students to torture and targets to kill).

But there was no harm in delving into it a little further, and naturally the next question was; Where did Tsuna get his strength from? Further deliberation yielded the hitman his answer.

The blood of Vongola Primo and Sawada Iemitsu ran in the brunette's veins. Both men strong in their own rights; physically and flame-wise. Two traits – though one was less obvious than the other – that had been passed on to Tsuna. Not to mention the blood of Nana, the woman who had once been a renowned and strong hitwoman, and her blood ran just as strongly alongside Iemitsu's.

Furthering that was the natural latent strength that the boy possessed and also (Reborn noticed this during his torturing of the boy) his natural high-level tolerance towards pain.

It was his final and most important trait however that brought everything else together, whether directly or indirectly. An inheritance, seemingly passed on from the Primo himself – pure sky flames; causing not just his mind and soul to be harmonised but also his body.

So, for all of this, it was no wonder the boy was so unbreakable. Reborn's Spartan training, only building up and further enhancing all of Tsuna's natural – however deep in the recesses of his body it was – strength.

And so, this resilience was perfect for the petite boy who was constantly abused by peers, tutors and enemies alike. Because this resilience allowed the boy to go through his life so far without breaking a single major-

A scream shattered Reborn's thought bubble and he refocused on the sparring match between Tsuna and Xanxus. Only to see Tsuna clutching his arm which was bent, at the elbow, in an unnatural angle.

Reborn almost sighed, walking off to find a healer. So much for his evaluation of his students' strength.

(^^)

A/N: Well, this ended on a completely different note than my previous rewritten version, and somehow I like this one better. Surprisingly enough :3 I thought the ending was sweet and sorta funny, whereas before it just ended with (I think) Reborn thinking that Tsuna was fortunate because he never broke a bone.

Reviews are welcome and highly appreciated :3 I would like to hear your thoughts and feedback! If you see any mistakes, please feel free to point them out to me.

I extremely thank you for reading and hope to see you in my next chapter.