Nakimushi Na Sadistic summary:
Okubo-kun, a serious lawyer, has fallen in love with his boss, lawyer Hanamura-sensei. He chases after him even as he goes independent. However, he's given a "test", an SM play, and on top of that, Hanamura-sensei declares to him that he's a masochist. He can't get his beloved Hanamura-sensei to accept him unless he tortures him.