Film by Yoshihiro Fukagawa, 1999.

Ami, a girl who works as a flower arranger, also works as a professional assassin

At Onin High School, a trio of schoolgirls who battle paranormal entities face off against "erotomaniac spirits" that have possessed the female students with insatiable desires.

Two Japanese friends accidentally kill their boss and dump his remains in Black Fuji, a mountain/landfill hybrid. This leads to poor results when the chemicals of the landfill mix with the corpse (and many other corpses) to give rise to a zombie infestation in Tokyo.