It's their fourth night. Had all gone as planned, Nana and Kaoru would've been on a train back to Tokyo by now, but an approaching typhoon strands them for another night in the Japanese countryside. Now, they have a night all to themselves. The storm rages, but their room is dead silent. Then the two engage in their steamiest, most intense night of countryside breathers yet, as day five slowly approaches.

Nana & Kaoru Black Label story and art by Ryuta Amazume. English translation is done by Mike Wolfe. Lettering by Diogo Pereira. Published by DENPA BOOKS (September 2, 2026). Rated M.

Lucas DeRuyter
Rating:

Stop me if you've heard this one from me before, but I'm very much of two minds about this adult manga! To bust out a familiar turn of phrase, Ryuta Amazume's Nana and Kaoru Black is a land of contrasts where its dedication to depicting both the mechanics and emotionality behind BDSM is impressive and commendable, but the age of this long-running series is also on full display, and the mentalities that frame this exploration feel rougher than ever in 2026.

Their kink-filled vacation is extended by an extra day due to an unexpected storm; in this volume, the titular Nana, a model student with a masochist streak, and Kaoru, an insecure social outcast drawn to the power and control of sadism, take their relationship to the next level via an evening filled with rope play and charged emotions. With the entire volume centered on this session and the feelings that fuel it, Nana and Kaoru Black Label Vol 5 covers what makes rope bondage and suspension play so appealing to so many, as well as how and why these young people specifically get so much out of it.

A tremendous amount of care and detail goes into depicting the various knots, positions, and best practices involved in shibari. While I don't personally have a ton of experience with rope play, as an actual session with this focus takes a TON of preparation and planning, I've spoken at length with rope kinksters, and their description of what they get out of the play matches what's in this text. The loss of control inherent to this kind of intimacy and the trust and connection it fosters between people engaging in it is so intense as to nearly be palpable, and the fullness of that experience is brilliantly depicted in Nana and Kaoru with its split-perspective storytelling.

However, I REALLY don't like that Nana and Kaoru are still in high school! While this work does a great job of showing how kink can be a means through which people who feel isolated connect, now more than ever we as a society are aware of how detrimental it can be for young people to begin the exploration of their sexuality through hardcore sexual material, especially when they still have plenty of internal work to do. Also, and this is again indicative of how long this series has been running, Kaoru's almost-toady appearance was a constant distraction for me, and I felt like his comical appearance was detracting from the emotionality of the story.

If you pay attention to the hentai scene, chances are you already know if the Nana and Kaoru series is for you. Quirks aside, Black Label Vol 5 is likely a high point for the franchise and more than worth experiencing, even if the text is more about this particular kind of kink than the most erotic depiction of rope play.