Long ago, the long black-haired woman originally as a human, built the well in 20 years ago after the Awakening Trio slept in deep slumber. As the woman, however, was killed by the people who used psychic powers though using too much. The people throws the woman's corpse to the sea without any trace left to find her since the Awakening Trio were still hibernated. After the black-haired woman died, the people nearly destroys her old well with fire and throwing rocks, leaving it as an broken well afterwards. The people decides to built the any building and creates the further city called Furiton City, drawn into Pokemon Trainers as the old well still standing. After they built Furiton City, the black-haired woman ghost appeared, standing in the man; scares him away as the girl saw the ghost of the black-haired woman which is named her; Cursoa. Cursoa attacking the civilians, attempting to kills them for killing her 6 years. The girl wrote the story of the Cursoa: The Sadako Spirit Pokemon. She writing the story about Cursoa finding her physical body, but no trace left to be found and she angered to the people. Her spirit became cursed and she addressed known as the Curse Pokemon. The furious Cursoa rampaging the Furiton City and almost attacks the civilians. So far, the Curse Pokemon used the powerful attack called Curse Ends to send Pokemon to fall asleep, draining them until fainted. Fortunately, the old well manages to stop Cursoa's rampage and sealed her with it which is the girl comments that the old well saved them from stopping her rampage forever. However, the end was not here as the malignant spirit.