“Which matters more, work or your master? Get to the hotel now.” Ririko is a high-powered sales director at a Tokyo advertising agency, overwhelmed by her workload, a distant marriage, and her incompetent subordinate Yoshino. One night, Yoshino takes advantage of her while she is drunk and discovers the masochistic desires she has kept hidden. From then on, he summons her to an SM hotel during lunch breaks, reversing their workplace hierarchy as he dominates and toys with his boss until she submits completely and learns to crave the pain.