Nana & Kaoru, Volume 2 (Nana & Kaoru #26-51)

Nana and Kaoru's unique relationship continues to develop. And now things have progressed to something more "physical." Whether it's with blindfold and mouth speculum or some over-the-knee action, tensions build as Nana searches for new ways to unwind. Eventually, that leads to a spanking that strikes at their hearts...