Haunting My Boyfriend (Dropped)

Tomoya was only five years old when he learned that his father had died in a freak car accident. Torn by a mixture of grief and confusion, he ran away from home only to return late in the night, to the relief of his teary-eyed mother. But he was not alone. The ghost of a teenage girl had somehow drifted into his life and over the course of ten years the unlikely duo had grown to be inseparable. Together, they stumble across a series of clues that shed light on the truth of his father's disappearance, only to have their desperate search overshadowed by another, more dangerous conspiracy. Tomoya couldn't help but ask himself, 'If she is a ghost, then how did she die? And why has she never left my side?'