Black Desert / Quests / Devil with a Blue BackDevil with a Blue BackDescriptionFederico of Ahto Farm said that you need to be able to handle Grass Hedgehogs to settle here because they can ruin farming. He asked you to learn about the Grass Hedgehogs' weaknesses.ObjectiveIdentify the Grass Hedgehogs' weaknessQuest giverFedericoDeutschFrançaisEspañol