High School Mystery: Gakuen Nanafushigi
Japanese title: ハイスクールミステリー 学園七不思議
Type: TV
Episodes: 41
Premiered: spring 1991
Source: Unknown
Genres: Horror, Mystery
Producers: Studio Comet
Duration: 25 min per ep
Rating: R - 17+ (violence & profanity)

Mizuki Ichijo is a junior student at Kosen high school. Her grandmother was a medium and she experiences various psychic and mysterious phenomena which occur at the school: accidents, suicides, bullying, resentment, romance and more. She is befriended by the third year student Meiko Tsukikage, and together they attempt to solve the mysteries.

(Source: Wikipedia)