Murciélago. 04

In order to save Nanami, Kuroko has infiltrated the Virginal Rose, a group of women who have isolated themselves from the outside world. Surrounded by dozens of lovely ladies who have no interest in men, Kuroko might end up becoming a permanent member! But could there be a darker side to this group? As Kuroko loses the will to resist, her fate may depend on the ninja skills of "Stealth Hinako"...