IS: Infinite Stratos 2

The students at the IS Academy are trained to become pilots for the Infinite Stratos (IS) weapon system.

And Orimura Ichika is the only male among the otherwise female students at the academy capable of piloting an IS.

Much to the chagrin of the five girls — ojou-sama Cecilia Alcott, sporty Charlotte Dunois, girly Huang LingYin, sober Laura Bodewig, and tsundere Shinonono Houki — that already have a crush on Ichika, other rivals appear...

Such as the mischievous and quite direct student council president Sarashiki Tatenashi who forces Ichika into additional "training", to improve his skills in combat.

Or a previously unknown little sister, Orimura Madoka, in cohorts with some enemy force, linked to the worldwide theft of IS units.

Or Tatenashi's shy younger sister Sarashiki Kanzashi Ichika is asked to team up with for the upcoming tag matches.

— written by foo2