All that Lillian Wake ever wanted was to finish high school and enter the family business, but that dream came to an abrupt end when she was snatched from this world along with her entire class during a tragic bus accident. Reborn into a world of monsters and magic, she and her classmates try to eke out a new life there with hope in their hearts, but it soon becomes apparent just how unprepared they are for this dangerous new world. Worse still, Lily finds herself the target of her own foul magic, which turns her into the walking dead! Betrayed by the last connection she had to her old life and left to rot in a deep dungeon, Lily's fate seems sealed until she feels something dark pulling at her spirit from somewhere deep within these shadowy halls. Can she become the Dungeon Master? A dark-fantasy isekai about a girl whom fortune has abandoned, and her quest to conquer a dungeon so she can finally have the peaceful life she dreams of.