Spas-Pa(2002)

Spas-Pa

Itsuki Minamori has fallen asleep in class and dreams about a girl from his past. He is awakened by Haruna a girl who apparently has a crush on him, but her friend Chihaya Yuuki tells her to stay away from this boy. He explains that he's spent his life being followed by evil ghosts and during the exposition, another one shows up.