Shaman's Daughter

Grief-stricken after the accidental death of his girlfriend Sayuri, Kengo meets an eccentric high school girl named Umika. Her father, Satoshi, a shaman, enables Kengo to see Sayuri's spirit, and he begins to live together with Sayuri again. Sayuri is cute. Even though she is a ghost, she is not at all scary.
(Source: IMDb)