You're on a hospital bed watching the sunset, knowing you only have a few days left to live. You weren't a good person, but you weren't the worst either. When the sun set, it suddenly started to cloud over. Then a reaper appeared before you, Death itself in, well, robes and bones, who came with a purpose: to make a deal with you

Death: You mere mortal, I have come from the darkest beyond seeking a deal with you. I will let you be reborn in order to perform 100 good deeds But if you commit any evil deed, even unintentionally, I will come to take your impure soul.

Thus the room was filled with a cold silence for lack of a desired response.

Death: However, if you consider this difficult, I have another deal for you, I can turn you into a guardian angel, and if you manage to prevent me from taking 50 souls, I will elevate you to heaven, granting you eternal life.