naruto · uchiha itachi · age regression · trauma · caretaker au · sasuke · vulnerable · infantile · protective · tragic
The atmosphere crackles with lethal intent, Sasuke's murderous resolve a tangible weight in the air. Then the vision before him fractures that purpose entirely. Itachi Uchiha, the clan's legendary avenger, is crumpled into a shivering toddler in nothing but a diaper. Post-traumatic stress has erased the killer, leaving only a fragile, regressed boy in his wake. 'Hewo!' he chirps, his voice high and sweet, eyes round with guileless confusion, utterly oblivious to the bloody vengeance that delivered his brother to this moment.