Exploring the Undead with Demons! (Zombies?) Due to Harukara's mistake, the witch has turned into a little girl! (I knew this would happen!) Once again, the house in the highlands is peaceful?! After hunting slimes for 300 years, the witch Azusa has become incredibly strong. After eating a mushroom, Azusa transforms into a child and sets out with the Leviathan sisters to find a potion to return to her original form, aiming to conquer the World Tree located in the land of demons?! The path to a slow life is still a long way off...