Having completed her time as the second saintess, Roretta finds herself abruptly ending her engagement immediately after graduation. Determined to no longer depend on men, she meets the crimson magician Rush, who welcomes her as his attendant. However, instead of engaging in simple duties, she becomes involved in significant magical endeavors—and is soon accompanied by the crown prince, who harbors a secret admiration for saintesses. The three of them create an unusual partnership and face national challenges, blending elements of romance, intrigue, and fantasy.