IS: Infinite Stratos

IS: Infinite Stratos is a 12 episode anime based on a light novel series about students who pilot suits of power armor and attend a school to learn about piloting them. It is structured harem-style.

Episode 1
Orimura Ichika goes to his room and discovers that his childhood friend Houki Shinonono is his roommate. She comes out in a Towel after an Off Screen Shower and then gets mad at him and tries to attack him with her sword.

Episode 2
Cecilia Alcott takes a Shower.

Episode 6
Charlotte Dunois takes a Shower.

Episode 8
Charles with Ichika.

Episode 10
Various girls seen bathing together at an inn or something in the first few seconds prior to the opening theme. They're secondary characters and their names are unknown.

Infinite Stratos OVA
Houki Shinonono has a Furo scene.