Kiss, sigh and cherryblossoms pink.――――the material of love., Kuchibiru Tameiki Sakura Iro (II), Kuchibiru Tameiki Sakurairo, Secret Girlfriends, くちびるためいきさくらいろ (II)
Nana and Hitomi have been together for several months now. They kissed, they had sex, but their relationship is still a secret for everybody else. However things may be starting to change...