Nana & Kaoru manga volume 4 features story and art by Ryuta Amazume and collects volumes 10-12 in an omnibus format.

Kaoru's latest session is easily his most challenging yet. And as it is going places he had never imagined, he was not fully prepared for all the of potential pitfalls that may pop up. The biggest challenge may not be the session itself, but it may be the feelings of the young women that he has engaged with. He thought he was in charge and he thought he was being fair. But the truth was it seemed very clear that he was playing favorites and that doesn't settle well with some.