The Witch's Servant and The Demon Lords Horns

Chapter 55: The Witch's Servant and the Weakling
Chapter 54: The Witch's Servant and the Line of Distinction
Chapter 56: The Witch's Servant and the Free One
Chapter 54: The Witch's Servant and the Line of Distinction
Chapter 56: The Witch's Servant and the Free One
The Eternal Vivian is dying from an unknown disease and must rely on her young apprentice Betty and her servant Arsenio to make the cure. Unfortunately, one of the ingredients is Horn of the Demon King- something completely out of reach of the two. Luckily, on the first expedition to the Demon King's Castle they meet a girl(?) who may be able to help them out…