Shôjo kakumei Utena - Season 1
This series is about a girl called Utena who was helped in a difficult time by a handsome prince. She was so impressed with him that she vowed to become a prince herself. She is attending a boarding school where she stands out with her gender bending ways and boy's uniform and makes friends with other students in school, most notably a bizarrely submissive Indian girl called Anthy. When one of her friends is publicly humiliated by her crush, Utena protests and is called out on a duel by the boy at a bizarre arena. With some difficulty, she wins and finds that Anthy is now "engaged" to her as the "Rose Bride" that is the key to a world revolution. Now, she finds herself forced to fight repeated challengers for Anthy, face similar rivalries in her personal life and tries to help Anthy gain some will of her own. All the while, the duels she must fight are leading her to a goal of world revolution that has implications she is not yet aware of.