Sasuke Uchiha is cheerful, forever smiling, and deadly with a sword in hand. Team 7 is cohesive, capable, and formidable apart but unbeatable when together. This world is better for all of it. [OR: Takeshi and Sasuke are one and the same. Mafioso and shinobi aren't so different, after all.]

Thirteen is too young to gain eight years of memories that might come to pass--especially when you don't even know what to do with yourself in the present. But when the future is that bloody and dark, do you have any choice but to try to change it? He remembers the absolute agony of the doctors trying to save him, which finally sent him into blissful unconsciousness— —except he doesn’t remember any of that. Tsuna’s last memory is of putting his head down on his desk and falling asleep to the sound of the teacher’s droning, thirteen years old and tired of not understanding a word, not of being twenty-two and beloved and dying.

He had died- honorably, he'd like to think, despite living as a villain and an assassin for over half a century- and that, as far as Xanxus had ever figured, would be the end of that. No heaven. No hell. Just life when you were breathing and nothingness when you stopped. Except that it didn't, quite, turn out that way. Except he came back as the son of the kindest, sometimes saddest father in the world. In both worlds. A father that he knew, without a doubt, to be his flesh and blood. All at once, Xanxus had everything he'd wanted as a child. A home. A family. Stability. And he was going to fight like hell and beat down anyone who tried to take it from him, no matter what his age. (In which Sakumo raises a son who speaks multiple languages from birth, all of them gibberish to the poor single father jounin, spits vulgarity with the same ease as he does his praise and burns with an unshakable determination to build himself a family that will not fall, no matter who or what is thrown against it.)

Tsuna doesn't know how he dies for good, only that he still has regrets when he does. When he wakes up, he's in the body of Sawada Nana, mother of a 2 year old Tsuna, and those regrets become tenfold. He's drowning in the implications, when an Arcobaleno appears on his doorstep, and the future becomes infinite possibility.

In which Tsuna isn't Tsuna but Tsunako, and lived with her parents in Italy for a few years before circumstances made moving to Namimori seem advisable. And changes spiral out from there. For the prompt Xanxus/Tsuna - genderswap; "don't look down on me because I'm a woman."

101 ways to fix Xanxus. This series contains Alternate Histories all of which experiment with what changes might have led to Xanxus being only a little broken instead of totally insane.

Hibari Kyouya travels in time and takes over the world. Basically crack.

In a world where Fugaku has three sons, he wishes he'd stopped at the one. There's nothing wrong with the youngest, it's just... The middle child.

Hibari Kyouya travels in time and takes over the world.

Kakashi has a lot of work ahead of him if he wants Tsuna to survive, but at least the company is agreeable. And cute.

Tsuna is dead. Hayato decides that is Not Acceptable. And proceeds to break space time to fix it. He regrets nothing. Except for the fact that he arrives back in Italy, half a world away from his Sky. He then embarks on the epic mafia road trip from hell to find his Sky, along with three escaped lab experiments, one kidnapped mafia heir, one runaway schoolkid on a field trip to Paris, and a dog called Spot. Or the one where Hayato is incredibly Extra about everything, and no-one but Dino notices.

When Uzumaki Naruto breathed his last, he didn’t expect to wake up in the world of the living again. He was old, and tired, and so, so ready to move on. And, well...he wanted to see his wife again, dammit. But, of course, that wasn't what happened. Why? Naruto screamed at the powers-that-loved-to-fuck-with-his-life-and-now-his-afterlife-too, with tears streaking down his cheeks, feeling cold, weak, hungry, and utterly disgusted. Because you’re everybody’s bitch, Kurama helpfully supplied.

The War against Byakuran had been desperate, and the backlash against something he tried had thrown him back in time. He made a plan, but ...

What would change about the Song if all those connected to the Tri-Ni-Sette reincarnated into the world of Westros?

The children of the Sea have always chased after the horizon with a fire in their hearts that drove them ever forward to reach the place were the sky kisses the water. Not even death can stop the Will of D from echoing across the world. Sawada Tsunayoshi is the responsible older brother to three wild and mischievous little brothers. Tsuna loves them and they love him back. Now if only the world around them would stop catching fire so easily all the time, that would be fantastic. (The Will of D joins with the Flames of Sky in a Harmony that will bring forth the storm of change.)