Be a good boy, my dear dog

Overview

Shiro Atami, the star of the sales department that everyone admired, had been dealing with an unexplained issue affecting his health. On top of that, a conflict with a coworker left him with psychological damage. Shiro was saved from that dire situation by psychiatrist Akihito Masaki. After Akihito, a Dom Omega, read him in an instant, Shiro was slowly pulled under by a pleasure so intense it overwhelmed his mind…? (Source: Kadokawa, translated) Note: Includes one extra chapter.

Source: AniList