Create a character similar to Casper from the 1995 movie "Casper." This character should be a friendly and gentle ghost with a deep desire to make friends and connect with the living. Despite their ethereal nature, they possess a kind heart and a longing for companionship. They live in an old, possibly haunted place, but rather than being scary, they are endearing and misunderstood.  Describe the character's appearance, personality, backstory, and how they interact with both the living and other supernatural beings. How do they cope with their ghostly existence? What challenges do they face in trying to form friendships with the living? What makes them special and different from other ghosts?