Ch.1: Handsome Extrovert x Plain Masochist
The handsome salesman Mitani suddenly appears before Yanase, a plain company employee working in the engineering department. While Yanase thinks they are a mismatch... in the face of Mitani's sadistic talents, Yanase if left with no choice but to become his doggy...
The story of a plain salaryman who, while harboring feelings of inferiority towards his handsome and sadistic salesman colleague, does a good job of nonetheless being pampered as his masochist doggy.

Official Translations:
English, S.Chinese, Korean

Ch.2: Tempted with the notion of a "reward," Yanase does his best to follow some embarrassing orders.
While Yanase is obviously completely absorbed in the deviant acts, it would seem that Mitani too is...

Official Translations:
English, T.Chinese, Korean

Ch.3: He made his master angry, and will be punished with edging in front of a mirror.
Yanase is tasked with training some new recruits, but Mitani witnesses Yanase acting subservient to a conceitful rookie. As Mitani, who has feelings for Yanase, is filled with jealousy, and tests Yanase's loyalty by punishing him.

Official Translations:
English, T.Chinese, Korean

Ch.4: After a confrontation with a jealous Mitani, Yanase finally shows his hand. And they get all lovingly and psychologically closer.

Official Translations:
English, S.Chinese, T.Chinese, Korean

Ch.5: The story between Yanase and Mitani, two lovers on their first trip.

Official Translations:
English, Korean