A Shinobi Classroom Retrospective
Kiriya's training of the girls turns especially strict. Afterward, he reminisces about the time two years earlier when Ikaruga and Katsuragi were new students. As Asuka, Hibari, and Yagyu join in later on, the road to the team's formation is revealed.
Aired 24/02/2013EP 8 - A Shinobi Classroom Retrospective

2013
Senran Kagura: Ninja Flash!
Super cute Asuka and her curvy companions appear to be your typical high school students, but they’ve got an outrageous secret: they’re learning the wild ways of the ninja! Get a lesson in action, naughtiness, and sexy slapstick fun as Asuka's gang takes on the toughest (and hottest) fighters in town! Fan service fanatics won’t want to miss a minute!
(Source: Crunchyroll)