A brunette male age fourteen was walking around when he saw two children running to him. One was a whitette haired boy with three triangles under his left eye and a bluette haired girl with a flower under her right eye and a pacifier around her neck.

He can see both were badly hurt with six people after them. Both run behind him as he crosses his arm in front of his chest making the man to stop in their tracks. The person wasn't please nor was he happy about this.

"Good evening, gentleman. Mind telling me why you are after my little siblings?" Both children looked up at their big brother as he was always there for them.

"Why should we tell you, Stormy Misty Lightning Flame User?" The Brunette smirks as he cracks his knuckles.

"Sorry to burst your bubble, but I'm a Sky Flame User with my little siblings being the same. Xanxus, just in time to baby sit two skies while I'll deal with these stupid idiots personally." Both ran to him and Xanxus's Sun Guardian was quick to heal them.

The brunette kicked one of them in the jaw breaking it while a single punch had destroyed his rib cage.

A single kick to the back of the neck to another one had him on the ground dead before the brunette punches the next guy in the throat hard breaking their neck.

The other three attacked at the same time, but the brunette spin kicks them into a lap post that cracked their skulls and killed them. Xanxus was shocked with his other guardian before the little ones went to their brother.

"What the fucking shit was that, Tsunayoshi Sawada?!" The brunette, Tsunayoshi Sawada, looks to Xanxus before picking his sister, Yuni up into his arm and holds his brother, Byakuran's hand.

All three left and Reborn was there with his friends as they saw the whole damn thing that no one has ever seen, but Xanxus and his guardians.

"Tsuna has changed. He worries for his siblings more than anything."

"Kora! La, did you see that spin kick, kora?!"

"I'm scared of him now, senpais!" One hugs La making her to feel him shaking.

"The Tri-Ni-Sette siblings can't be hurt without the older one killing to protect them? I need to do some research on this."

"Let's leave them. Tsuna is already got it covered, but how does he still smile when he kills to protect them? He knows the older Tri-Ni-Sette sibling curse and yet, doesn't back off."

"Agreed." They left it until Iron Mask shows up making Tsuna to make him chock on a piece of apple and killing him with the Tri-Ni-Sette siblings in control now.

'Don't mess with the big Sky brother!'