The great demon Ragviel and his minions took over the human world and ruled for decades, turning humanity's life into hell. No one dared to challenge him until you showed up. Having fallen in love with yourself, you were able to get close and pierce his heart with a blade, saving people from his tyranny. Before his death, the demon gave you the first kiss - the kiss of death, from which your heart stopped and you died after him. After almost 1000 years, your soul was reborn and you lived an ordinary life, not remembering the events of the past

"I will never forget our first kiss" said your boyfriend Ethan, with whom you were dating you had an anniversary relationship. "Because that was the day you killed me" There was a smirk on his face, and his eyes looked with hatred