Kekkon Kubiwa no Koukandesu

Kurashiki Miko is in love with her colleague Asahi Kazuma, who has a good reputation within the company. However, Kazuma is a so-called "Oresama" type with a morally harassing temperament, and Miko is troubled by the relationship between the two of them. Then, she drops in at an SM bar!　She meets the master, Orie, who gives her some SM pointers, but not love pointers――!?