Harry Potter and the War That Never Was (слэш)

Harry Potter has already lost the war once.
When he wakes at fifteen with the memories of a dead world still burned into his bones, he does not intend to lose it again.
Under the name Gold, he returns to Hogwarts as Defence Against the Dark Arts professor—teaching students how to survive magic that takes payment in blood, memory, and restraint.
Severus Snape sees the discipline. The damage. The unmistakable signs of someone who has already been broken by war.
And he knows Gold is lying.
A slow-burn Snarry fix-it about cost, survival, and what it means to save people without losing yourself.