The opening theme for the first season is 'Straight Jet', performed by Minami Kuribayashi. An original video animation, entitled IS Encore: A Sextet Yearns to Be in Love ( IS＜インフィニット・ストラトス＞アンコール『恋に焦がれる六重奏』, IS Ankōru: Koi ni Kogareru Rokujūsō), was released in Japan on DVD and Blu-ray on December 7, 2011. Six DVD and Blu-ray volumes will be released by Media Factory between March 30 and September 21, 2011. The series is licensed in North America by Sentai Filmworks, with Anime Network simulcasting the series on their video website. The first season aired in Japan from January 7 to Apon TBS, with subsequent runs on Chubu-Nippon Broadcasting, Sun Television, Kyoto Broadcasting System and BS-i.

The anime follows the first three volumes of the light novels.

Along with other IS students from different nations, Ichika and Houki's busy school life begins. There he meets Houki Shinonono, who is his childhood friend and younger sister of the creator of the IS. He is enrolled to the prestigious Infinite Stratos Academy, an international academy where IS pilots from all over the world are trained. The story focuses on Ichika Orimura, discovered to be the first ever male IS pilot. Set in the near future, a powered exoskeleton called 'Infinite Stratos' (IS), which possesses advanced technology and combat capabilities, changes the world including a major effect on society, as only women can pilot IS. The anime is produced by Eight Bit, directed by Yasuhito Kikuchi, series composition by Fumihiko Shimo, character design by Tomoyasu Kurashima, art directed by Shunichiro Yoshihara and sound directed by Masafumi Mima and Toshihiko Nakajima. Infinite Stratos is an anime series adapted from the light novels of the same title written by author Izuru Yumizuru and illustrator Okiura published by Media Factory. Cover of the first DVD/ Blu-ray volume of Infinite Stratos as released by Media Factory on March 30, 2011.

Infinite stratos season 1 epsidoe 3