Plot
Utena Tenjou, a new student at Ohtori Academy, tours the school with classmate Wakaba Shinohara. She observes a fencing match between students Juri Arisugawa and Miki Kaoru, and shortly thereafter encounters her ex-boyfriend Touga Kiryuu; after Touga departs, she discovers a rose-engraved signet ring identical to one he was wearing resting inside a white rose. Utena wanders into a rose garden and meets Anthy Himemiya, the sister of the school's absent chairman Akio Ohtori. She is referred to as the "Rose Bride" by Kyouichi Saionji, another rose-ringed student who sees Utena's ring and challenges her to a sword duel. Utena emerges victorious using a sword she pulls out of Anthy's chest.
That night, Anthy visits Utena's dormitory and attempts to initiate sex with her, but is rebuffed. When Utena questions Anthy about the duel and the rings, Anthy responds that the rings mark their bearers as duelists, that she is betrothed to whomever is the victor of the duels, and that whoever possesses the Rose Bride has the "power to revolutionize the world". Elsewhere, Juri's childhood friend Shiori Takatsuki tells Touga that as a child, her "prince" died attempting to save a drowning girl. They receive a phone call from Akio, who says that Anthy is a witch who made the lord of the flies into a prince, but when her magic faded, the prince returned to his true form; the duels are organized in an attempt to reactivate her magic. Juri, who is manipulated by Shiori into dueling Utena, is defeated after witnessing Utena seemingly transform into Anthy's prince.
The school's broadcasting club uncovers a video that suggests that Anthy was previously drugged and raped by Akio. Akio's corpse is found buried in Anthy's garden shortly thereafter, shocking the school with the revelation that he is long dead. A second video depicts Anthy lucid during her rape, which prompted a panicked Akio to stab her and accidentally fall out of a window to his death. Utena searches for Anthy and finds Touga; she suddenly remembers that Touga is the "prince" referenced by Shiori, and that he died while saving Juri from drowning when they were children. Utena thanks Touga for being her "prince", and he vanishes. Utena finds Anthy and tells her they should go "to the outside world", upon which Utena is swallowed by a car wash and metamorphosed into a car. Anthy enters the car and drives it away from the academy, though a fleet of tanks and Shiori – also in car form – attempt to thwart her. Anthy is assisted in her escape by Juri, Miki, Saoinji, and Wakaba, who have been inspired by Utena and Anthy to also go to the "outside world". An apparition of Akio attempts to stop Anthy, but she rebukes him in a burst of roses. Utena and Anthy emerge riding the remnants of the car, and kiss as they drive into a grey wasteland, with a blue sky above the clouds.