The MC is a commoner who died and then put in the body of a saint who who had just committed suicide. Both are from the same world. The MC's soul will remain in her body till the original saint's soul recovers as the saint cannot ever die through suicide since that will be disastrous for the world. Plot twist, the saint, contrary contrary to the people's view of her, has a really horrid personality and has done a lot of bad deeds. Every one around her hates her. So the MC decides to correct all the mistakes and horrible things done by the original saint while the MC is her body.