Nana & Kaoru, Volume 5 (Nana & Kaoru #106-133)

Nana and Kaoru's relationship has progressed quite a bit since they started their breathers. Now it is at the point where they feel like they should be taking a step up in their partnership. But that also means finding gifts that are uniquely for each other. And at the top of that wish list is a custom choker! Is Kaoru ready for that? Does Nana even want one from him?