Friend of the Family

A Friend of the Family is an entity that inserts into your life memories, posing as someone who you've always know, only for you to realize when you've awakened that this person has never existed.

Behavior
This entity will use false memory implanting to make you believe you know it, it can even pose as your nonexistent best friend, family member, or significant other. It's not inherently malicious as it's place in your false memories will make you comfortable with it and keep stress levels low. What happens after that is completely up to the randomly created story the dream ends up displaying. If it fails to fool your memories, you will likely become confused and uncomfortable with it's presence in your life and the fact that your friends and family know who it is, causing stress levels to rise and the Friend of the Family to turn into a Mr. Friendly.