Tsuna and his guardians died in a blaze of glory. Then they woke up, slowly, one at a time, in a different world that was the same in all the ways that really mattered. Or the one where Tsuna and his guardians are reincarnated into the class below the Konoha rookie nine.

When Nie Mingjue turned sixteen years old, he was alone. He had taken nothing with him but his saber, Baxia. He had hugged his brother maybe-goodbye, and then he had gone down into the saber tombs to wait to see if this was the year he was going to go insane. (a fairytale)

In which Midoriya Inko happens to be the reincarnation of one Izumi Curtis- and the world will never be the same.