In A Ghostly Desire, you play "Marc" and step into his life as he returns from a three-month journey. The main story takes you through the game world, unlocking different parts of the city and meeting new characters. You start from home, gradually getting to know more characters or reconnecting with familiar ones in linear gameplay. You can do quests with or for them, involving either sexual interactions or exploring sexual fantasies, all stemming from a voyeuristic interest. Each character has their own story with the main character, and various locations will also have their own quest lines.