Akuyaku Reijou, Godome no Jinsei wo Jaryuu to Ikiru. Hametsu no Jaryuu wa Hanayome wo Amayakashitai

The countess, Musee Schnorr, has died four times, with both time and her life rewinding after each death. After her last death, her fifth life begins anew with the betrayal of her fiance. When pushing away the despair of her many tragic ends, someone she encountered during her fourth life comes to mind. He was the only person saddened by her death, and the very one who will destroy the world--The Evil Dragon of Ruin. Now, the curtain rises on Musee and the Evil Dragon’s broken love, along with their sweet revenge.

(Source: MangaUP!)