Ninja That Stand Atop Skyscrapers
Asuka, Ikaruga, Katsuragi, Yagyu and Hibari are five school girls who secretly train in the ninja arts. As they are sent by their mentor, Kiriya, to handle some delinquents in town, Asuka meets a girl named Homura and helps guide her through town, unaware that she is secretly an enemy shinobi. Meanwhile, the others encounter the delinquents, who are soon revealed to be wooden puppets controlled by an enemy shinobi. As the girls manage to beat the puppets, Asuka remains blissfully unaware of Homura's true alliance.
Aired 06/01/2013EP 1 - Ninja That Stand Atop Skyscrapers

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)