Japanese genre cinema is known internationally for two things. The first is "J-horror" boom that began in 1998 with "Ringu" and lasted about ten years, launching the international careers of directors like Hideo Nakato ("Ringu", "Dark Water") and Kyoshi Kurasawa ("Pulse", "The Cure")and inspiring any number of bigger-budgeted, but usually inferior, Hollywood remakes about spooky, wet ghost girls. A less well-known, but actually older Japanese genre is the "pinku eiga" or "pink" films, which are arty, relatively high-class softcore sex films. Horror films and "pink" intersected somewhat in the 1980's with "ero-grotesque" films like "Entrails of a Virgin" and "Naked Blood". More recently there's been a lot of shot-on-video stuff like "Girls' Swim Team vs. the Undead" and "Big T*t Zombies" where nubile young Japanese girls alternately slay monsters and get *bleeped*. But for the most part (aside from an odd duck like "The Slit-Mouthed Woman") the "J-horror" ghost girl movies and the sex-saturated "pink" films were kept separate.
Tahasha Zeze is actually one of the more well-regarded "pink" directors famous for films like "The Dream of Garuda". But here he is basically making an early ghost girl film (where the girls are wet because they're ghosts, not for other reasons. . .). He wasn't just jumping on the bandwagon though--this was actually made a year BEFORE "Ringu". And while it does have some obligatory "pink" scenes, like a girl in a school uniform getting her perky young breasts sucked and fondled, and it does feature teenage characters more than a little interested in sex (one girl is contemplating giving it up to her boyfriend, another constantly talks about sex on the late night talk show she anonymously hosts for some reason, and the third has a decidedly lesbian crush on one of the other friends), this is much more "J-horror" than "pink" (unlike the aforementioned "Slit-Mouth Woman").
Of course, it doesn't make much sense. The three protagonists use a Ouija board-type thing to try to contact a spirit called "Kokkuri-san", who's kind of a more benevolent version of "Blood Mary" capable of predicting the future. But the predictions turn out to be pretty dire for all three as they seemingly awaken a vengeful female ghost, who may be a childhood friend of the main protagonist who drowned herself after they'd earlier played the "kokkuri" game (begging the question of why she'd ever do it AGAIN), or it may have something to do with the protagonist's recently deceased, sexually promiscuous mother who once saved HER from drowning. Don't expect the movie to answer anything because it doesn't show the slightest interest in doing so, but it does have a pretty effective atmosphere and some startling visual images like a girl in a long red dress floating in the ocean (later used for the cover of a book on Japanese genre films). Anybody, who insists on logical plots will no doubt hate this, but if you prefer spooky atmosphere, striking visuals and/or nubile Nipponese cuties in school uniforms, you'll probably like it alright. . .