Siesta, in an effort to win Saito, challenges Louise to a contest. If he can locate Louise at the Seipnir ball, she will relinquish her advances towards him. Louise accepts, telling Saito that if he succeeds, she will allow him to “continue what he started before”. The ball arrives, and each participant takes a turn at the mirror of truth, which transforms him or her into their ideal self. Saito, on the way to the ball, notices a dark shape flying over the academy. Believing Louise to be in danger, he rushes in and begins to search for her. Locating her on the balcony, he has a brief conversation with her before the two kiss. Sheffield then arrives and disrupts the ball, destroying the mirror and reverting everyone to their former selves. Saito then discovers that the girl he kissed is not Louise, but is in fact Princess Henrietta, who had taken Louise's form.
Il Ballo Spleipnir, durante il quale tutti si travestono utilizzando la magia, viene interrotto bruscamente quando l'Accademia viene attaccata da Sheffield che cerca di rapire il Mago del Vuoto. PEr far questo si avvale di Tabitha che è disposta a tutto per far tornare il senno alla madre.
才人を巡る恋のライバル関係に決着をつけるため、シエスタはルイズに勝負を提案する!! それは翌日催される「スレイプニィルの舞踏会」で、才人がルイズを見つけることが出来るかどうかというもの。ただし、この舞踏会は「真実の鏡」というマジックアイテムで、自分がもっとも憧れる人物の姿に変身して行うという趣向のイベントである。絶対に負けられないルイズは、才人に自分を見つけられたら「この間の夜の続きをしてあげる」という大胆な約束をする。そして舞踏会当日、会場で才人は首尾良くルイズの姿を見つけるのだが･･･。
En la Academia de Magia se celebra El Baile del Sleipnir, una tradición en la que todos van disfrazados para encontrar a su pareja ideal. Para este importante baile Siesta y Louise discuten quién de las dos será encontrada primero por Saito, poniendo en aprietos al joven espadachín.
