I remember stumbling upon a fic titled 'The Ghost and the Shadow' on AO3 that absolutely wrecked me. It explores Edo Tensei Itachi's reunion with Sasuke in excruciating emotional detail – the way his translucent fingers hover over Sasuke's face without touching, the way Sasuke's voice cracks when he says 'Nii-san' for the first time in years. The author nailed Itachi's internal conflict between wanting to protect his brother and knowing he's now part of the very darkness he tried to shield Sasuke from. What got me was the subtle callback to their childhood, with Itachi humming that lullaby he used to sing when Sasuke had nightmares. The fic balances action with heart-wrenching dialogue, especially when Itachi admits he'd choose Sasuke over the village every single time if given the chance.
The best part? It doesn't romanticize their messed-up relationship. There's no easy forgiveness for the massacre, just raw, complicated love between two broken people. The final scene where Edo Tensei dissolves and Itachi fades mid-sentence lives in my head rent-free. If you search 'Uchiha reconciliation' tags, it's usually in the top five recommendations – deservedly so.