Sayoko is Back(2000)

Sayoko is Back is a Japanese supernatural series centered on Nishihama Junior High School, where a three-year curse demands that one student assume the role of Sayoko and complete three mysterious missions. Success brings fortune to the school; failure invites disaster. When Shu is chosen but passes the burden to his friend Rei, strange events begin unfolding—one mission mysteriously completes on its own. As unexplained occurrences escalate, Shu and Rei must uncover the truth behind the legend and the dark forces at work. Blending school-based drama with genuine horror, the series explores whether the curse is real or something far more sinister lurks beneath the surface.