Hishoka Usagi no Neya

He left love behind, and using his body was the only way to connect he knew. A loving, loyal doggy-like top wants to save a debauched upper-class secretary and teach him how to love. Saeko Mikuni, a secretary to the president of a major trading company, is rumored to have more real power than his boss, and to turn into a slut at night. One day, on a whim, Mikuni takes on the responsibility of cleaning up the mess made by Teppei Natsume, a hot-blooded big dog-like rookie who has just joined the company. He intends to do it with his specialty: sexual entertainment for his bosses or important clients. It was supposed to be a secret, but Natsume catches him in the act. Mikuni, to avoid any trouble, tries to seduce him, but Natsume senses the sadness in Mikuni's eyes and reaches out to him: "I want to save you"...

(Source: Shu-Cream)