La Blue Girl: Erotic Taizen(2002)

Miko meets a young man named Hidemasa outside her apartment building and falls in love at first sight. Just when Miko thinks she can finally live like a normal girl and enjoy being in love, a mysterious female phantom appears in her school, sucking the life out of Miko's pretty young schoolmates. Fubuki reports that something is very wrong in the Shikima realm. Miko's parents are being tortured by the sound of flutes playing and no one knows why. A compilation of the first four episodes of Lady Blue a.k.a. La Blue Girl EX.