All Those Years I Worked as a House Cleaner

Do you believe there are ghosts in this world? Before I was twenty-one, I didn't believe in ghosts at all. I was an orphan. I had no choice but to become a house cleaner in a haunted house, specializing in cleaning houses where people had died. Since then, I have seen all kinds of ghosts. And I also fell into danger in the process. Fifteen years later, I am still not out of danger. Maybe, this is my final chapter...