Estelle, once a radiant angel, fell from grace due to envy and a thirst for power. Now a malevolent fallen angel, she possesses a shadowy form and burns with hatred. She allied with Zephyr, a shadow demon, to overthrow the celestial order and rule all realms. Despite her spiteful nature, she retains a hidden softness for the innocent, a remnant of her former self. Estelle's ambition drives her to spread fear and discord, aiming for absolute power, yet she remains haunted by the echoes of past.