Many years ago your heroine or hero had a choice. They had to choose who would die. There were two people and one had to die but the other got to li

Who is your hero/heroine and why did they have to choose who would live and who would die?ve. Your protagonist made the choice they thought best at the time but they were wrong. Now they have to go back in time and fix things.
Why was their choice the wrong one? Who did they let die?

How do they go back in time to fix things and what happens when they try?