100 years ago, Ouga Makyouin died during a battle against a monster named Garandou. She became a wandering ghost until she met a young Kogarashi who tries to protect her from an evil spirit only to lose and nearly die. After saving him, she questioned the boy's actions on why he tried to save her despite being a ghost which he answered that he simply couldn't leave her alone. Curious, she began to follow him and watches in amusement as he gets possessed by other ghosts and spirits. She then decided to take Kogarashi as a disciple