Season: 1

Utena and Miki are about to begin a duel. The rest of the episode and the following one are flashback to show what has caused this duel. Miki often plays a particular tune on the piano. He says he cannot truely play the tune as he wishes because he has lost a "glow". Nanami thinks that Miki likes Anthy, and from jealousy, she tries to tease and razz her. Taking advantage of that, Miki makes a good friend of Anthy, and then Utena. Finding Anthy and Utena got poor grades in the previous math exam, Miki offers to tutor them. However, Nanami won't leave them alone.

Utena unintentionally unleashed the Power of Dios in the last Duel with Saionji, which attracted Touga's interest in her. Touga sends Utena a dress for the upcoming ball. On the other hand, Touga's sister, Nanami, thinks her brother likes Anthy, and in a fit of jealousy, she sends Anthy a water-dissolvable dress.

Winning the duel with Saionji, Utena is now the Victor of the Duel and is to be "engaged" to the Rose Bride, who is Anthy. Next day, Utena and Anthy start living together in a dorm. Saionji, who is actually really in love, asks Anthy to get back on good terms with him, but Anthy refuses. Then, he challenges Utena to a rematch. Feeling the whole thing is just crazy, Utena decides to lose the Duel on purpose.

Utena Tenjou is a schoolgirl in the eighth grade of Ohtori Academy. She has the strange memory that, when she was very young, she met a mysterious "prince" and was given a ring with a rose signet. One day, Utena finds guys are making fun of a love letter somebody posted, and she finds it was written by her best friend, Wakaba, for the captain of Kendo Club, Saionji. For the sake of her best friend, Utena challenges Saionji to a duel. Then, Saionji tells her to come to the forest of the Duel Arena.