A Most Unlikely Berserker

He'd lived a good life. A long one. A happy one. The war was won. He saved his friend. Triumphed over darkness. Was hailed as a hero. He became Hokage. He expected that to be the end of it, to die in his sleep and pass on. Fate had other plans. In the end, he's a Most Unlikely Berserker. Fate Apocrypha! Inspired by RedhathackerSin's story "Lucid Berserker"! Narutoxharem!