Nana to Kaoru: Koukousei no SM Gokko

Kaoru is in love with his childhood friend turned idol, Nana. Over the years, their relationship has become strained with the differences in their lifestyles, but Kaoru still fantasizes about Nana helping him realize his ultimate fantasy... a BDSM relationship with her! One day, Kaoru's mother finds his toys and gives them to the ever responsible Nana to rid her son of his fetish, but Nana finds a leather piece and accidentally locks herself inside! This moment awakens something inside of Nana, whose stressful life could use some fun and could be the start of Kaoru's ultimate fantasy... (Source: Denpa)

During their final summer vacation, Nana and Kaoru’s plans coincide when both find themselves staying at the same mansion in the countryside, with Nana being tutored by adult goods shop owner, Tachibana, and Kaoru by his favorite BDSM writer, Sarashina Shutaro. Wanting to use the couple as inspiration for his next book, the two witness Shutaro’s mastery of BDSM with Tachibana. So when Nana witnesses the rawness and intensity of true BDSM, will she look away or will something new unlock in her? *Source: FAKKU*