After Severus Snape was bitten to death by Nagini, there was a flash of white light, and he returned to the time when he was eleven years old, and once again saw the person he had cherished for seventeen years.
In his new life, he is determined to make up for the mistakes he made in the past. He developed more powerful potions, more powerful spells, broke with Slytherin, and no longer used black magic, except for the final blow to Voldemort in the decisive battle...
He did this not in the hope that she would forgive her, but in the hope that she would be safe in this life, but... Why did her and his hearts become closer and closer? After so many years, he looked at the deer playing in front of him, and he smiled lightly, maybe he had never let go...
Purpose: Cherish what you have now