Tobirama comes down to breakfast on the first day of classes to find the Great Hall full of snickering, his husband conspicuously absent, and his brother face-down in his eggs.

“It was science,” Tobirama huffs, turning his glare on Madara. “You left your DNA all over me, Uchiha. I was hardly about to pass up the opportunity.” Obito debates clamping his hands over his ears and humming loudly. He did not need to know that in any shape or form, oh god.

A what if, of a what if... What if the Vongola Tenth Generation were to be raised by Uchiha Madara and Senju Tobirama? Well, for one thing they don't even bother with pretending to be nice people. For another, Madara is born into the Hibari family. Yes. Madara. Also yes. Those Hibari.