Encyclopedia Entry:
A monster that is thought to be born from a fusion of the lingering regret of those who lost love, and the monster’s demonic energy. They reveal themselves after being drawn by the lingering regret of men who were rejected by the women they loved. They don’t have a fixed form. Instead, they read the minds of human men, and appear in the form of a woman that the man had a one sided crush on. Not only do they look like her, they also take on the woman’s memories, personality, and abilities, making them their own.