Haunted Junction (tv-series, 1997)

Meet Haruto Hojo, an ordinary high school student with an unusual problem. He's got ghosts and spirits running amuck at school! Appointed President of the Saints Club, Haruto, Mutsuki, and Kazuo are charged with the task of investigating strange phenomena on campus and improve the quality of life for the school spirits that roam the halls. But how can three students handle the likes of Hanako, the sultry bathroom spirit, a Kosak-dancing skeleton, a fish monster living in the school's pool, Red Mantle, Nino-kun, and the rest of the Saito school spirits?