It's not necessarily a bad idea originally, but the number of similar settings in this manga category is getting a little overdone.
"I get into a game world / rewind time as the villainess who dies in any route." (Then again, in the "rewind time" category, the MC typically only knows one ending yet.)
It's kind of fun to see how the MC tries to "break" the original scenario to survive, but I would like the authors to find other ways to put pressure on the MC than "all normal routes end in death".
It makes me wonder how many of those "otome games" have death flung around so lightly. Having someone die, not to mention in all endings, seems a little hardcore of a concept for dating games.
(Granted, I don't know this game genre at all, so I might wrong in thinking that it doesn't fit the concept.)