Lily, who was a healer in an S-rank party, was expelled during a dungeon raid and cast into the "Abyss." "I might just die here alone..." Just as she thought that, she met two other beautiful girls who were expelled at the same time—the cool swordswoman Elmina and the innocent, cute, and powerful girl Daisy. The three of them decide to aim for the conquest of the unprecedented Abyss dungeon. Amidst this, due to the shock of hitting her head, Lily acquires the "broken" ability gift: "Career-up," which allows her to choose other jobs once she masters one!? Three expelled beautiful girls once again trust their companions, lean on each other, and playfully interact while combining their powers to stand against a cruel world. This is a girls' action and sisterhood Isekai fantasy!