Sorry... it looks like I can't really change the future. I thought being nice would be enough... but still, I died. Everyone still hated me. This will be the last day I will be identified as his fiancee. I'm sorry.
Mara-chan, why? Why did you... I'm sorry. So. So. Sorry. I should've been a better brother.
Mara, what have I done? Why did I not realize it earlier?! Mara! Please. This has to be a dream! Why did I break our promise?
What happens if the villainess loses hope and commits suicide after trying so hard to change her fate? Answer: Regret.
If two people can turn back time, they would. However, upon discoverying they did, the person they wanted to save was broken.