Infinite Stratos

Ichika Orimura is attending the Infinite Stratos Academy as he is the first male to ever pilot an IS where he becomes a sensation among the all female students of the academy. With his homeroom teacher being his older sister Chifuyu, an ex-IS pilot, Ichika is in unease and unprepared and trying to get use to the academy. Later he learns his dorm roommate is his childhood friend, kendo champion Houki Sinonono, who he has not seen in six years. When his class decides to elect him as their class representative, the British cadet representative and noble, Cecilia Alcott is against it and challenges him to an IS duel for the position.

Ichika is told by Chifuyu that he will be provided with his own personal IS for his match against Cecilia, a rarity since there are only 467 IS Cores that were created by Tabane Shinonono, Houki's older sister before she disappeared. To prepare himself, Houki agrees to train Ichika by practicing Kendo. On the day of the match, Ichika is given the IS Byakushiki against Cecilia's IS, Blue Tears. Cecilia has the advantage at the beginning as her IS is a Sniper while Ichika IS is a Close-range fighter but Ichika manages to transform his IS into First Shift, the IS second form and pulls out an energy sword. Just as Ichika is about to strike Cecilia, the match is declared over and Cecilia the winner because Ichika's energy sword completely depleted his IS shields. Despite losing, Ichika agrees to train more with Houki while Cecilia is unsure of herself despite winning the match.

Cecilia takes a liking with Ichika and gives the position of class representative to him instead much to Houki's chargin. The next day, Ichika meets Lingyin, the new transfer student from China who also happens to be his childhood friend and also the class representative of her class. After Ichika and Lingyin get reacquainted with each other, Cecilia and Houki get jealous and coached Ichika in IS practice very hard. Upon learning Houki is Ichika's roommate, Lingyin tries to get Houki to let her become his roommate instead which Houki refuses. But Lingyin later leaves in anger after Ichika doesn't figure out the childhood promise they made and wants to settle it in the Inter-Class IS Tournament. With his match against Lingyin and her Shenlong IS next, Ichika prepares himself.