God selects a Hero to be bestowed with a supernatural ability. Only one Hero can exist at any given time and a successor is chosen upon the previous Hero's demise. The current Hero is a common villager named Kyrie, who possesses the simple gift of boiling water. Tragically, Kyrie's loved ones are mercilessly slain, pushing her to the brink. Through this trial, Kyrie grasps the immense potential of her boiling power and unleashes her fury, seeking revenge against those who wronged her.