A strained collaboration begins between Suhwa, a goblin who despises humans, and Lee Ho, who loves them. Suhwa, a brush goblin who lost her family and powers due to human betrayal, discovers that contact with the fool prince, Lee Ho, unexpectedly restores much of her strength. Determined to fully regain her powers, Suhwa decides to grant Lee Ho's wish. Lee Ho, a cheerful and self-deprecating fool who willingly plays the scapegoat, has a single wish: to uncover the truth behind his mother's death. As Suhwa, who loathes humans, and Lee Ho, who cherishes them, navigate their uneasy partnership, Suhwa begins to recover fragments of memories from her past life-memories filled with sorrow and pain that are inexplicably tied to Lee Ho.