A spin-off of the popular anime and game series, Galaxy Angel! Karasuma Chitose, who has finally joined the Angel Squad she's always dreamed of, works tirelessly day and night, dreaming of the day she'll become best friends with the other Angel Squad members, despite being burdened with a mountain of troublesome tasks by her senior colleagues. However, she is plagued by the bad luck of one of the Angel Squad members, Millefeuille, and her life is constantly in danger. Before long, Chitose begins to harbor a desire for revenge against the Angel Squad. Will her revenge succeed? And will she ever find true friends?!