Kirakira No Natsu
Other titles :
きらきらのなつ, ささだあすか, 短篇集, Kira Kira no Natsu, The Basics of Stealth
Author(s) :Sasada Asuka
After her great great grandfather (or great great great grandfather, our heroine can't seem to remember) is saved by a member of the Kumezaki family, a ninja by the name of Iroha dedicates her time to protecting the girl of the family, Sakura. The series revolves around their exploits.