Hi!! I'm trying to find an interstellar novel where the mc was a villain and did bad things but has to redo the whole plot of the novel(??? I think it was a novel) because for some reason the world collapsed and in his second try, but all the male leads were reborn too and knows that the mc was faking to be a villain but I think they misuderstood it as him being a tsundere(I think?)) Idk if it was a 1v1 or multiple male leads. But so far I remember male leads being a crown prince who the mc 'loves' deeply, his Duke(??? Or was it marquis??) Godfather(?), A military member and yeah that's all I can remember.
I can be wrong, mostly since I don't read such novel, but just based on your description, I would suggest: https://www.novelupdates.com/series/the-villains-all-fell-in-love-with-me-after-rebirth/