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Half-sisters fall in love with the same man, the older sister marries him, and the younger sister has her memory wiped. The sister who remembers all of them tortures each other with men who don't love her. The sister who loses her memory starts a new life and gets true love. Worried that the prophecy will come true, the people around her will erase their sister's memory again. During the turmoil between the world and the world, my sister regained two memories, turned into a demon with grief and madness, and killed everyone, confirming the prophecy.