In a medieval‑style realm where royal power and holy church co‑rule, King passes away suddenly. Queen Selena seizes regency to safeguard her nine‑year‑old son. Caesar, the king’s ambitious brother, marches back with troops to usurp the throne. Pope Auguste, secretly a woman disguised as a man, steps in to aid Selena. Trapped by secular dogmas, the two women grow from allies into secret lovers. They brave double taboos, crush mutinous nobles and clerical foes. Finally they secure the young king’s accession, lay down heavy power burdens, and stay together for the rest of their lives.