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.
One morning, Itsumi is thrown into a panic as Sumio had suddenly grown cat ears and a tail. Meanwhile, a strange phenomenon had also befallen the the Sub x Dom couple, Kiyoharu and Kanau, where Kanau grew dog ears and a tail...?