Following the conclusion of her favorite romance manga, Fuuko Izumo is prepared to end her life of misery and loneliness, having long accepted her fate of never experiencing passionate love like fictional characters. Cursed with "unluck," anyone Fuuko touches faces grave danger of suffering unimaginable calamity. While the possibility of imminent danger would cause most sane people to run in the opposite direction, Undead has other ideas. He is an immortal being with superhuman regenerative powers who is desperately seeking death, which has always eluded him. When their paths finally cross, Undead sees an opportunity to finally end his suffering by using Fuuko's unluck. But before Undead can unlock the full potential of Fuuko's power to trigger the final devastating blow, the duo must first fend off a murderous secret organization hell-bent on exterminating those with special abilities.