Severus Snape had a miserable life and died at the Shrieking Shack. He expects pain or happiness but death is nothing like what he imagined it to be. He prays to be alive again and his wish is granted except he has traveled back in time. He wants to do his best, he learns that there will be some inevitable mistakes and makes an unexpected new beat friend.

Severus Snape dies at the shrieking shack. Death is not what he imagined it to be. He craves to live again and his wish comes true and he ends up traveling back in time to his 3rd year at Hogwarts. Reborn and humbled, his perspective on his life changes drastically. He fulfills some dreams, he understands that there will be some inevitable mistakes and he makes a new best friend .