Ghost and Joker: A thing to do for you

You wake up as a ghost with no memory of what happened or who you are. A girl called Joker — a Grim Reaper dressed in black — tells you that if you want your body and your memory back, you must help the living. The world around you is full of people suffering and mysteries multiplying. Help them, or stay lost. A visual novel adventure about a ghost working to return to life.