Gochisousama ga Kikoenai!

Overview

"It might be you who gets full, first." Chief Togawa, most admired businessman in history, is possessed by an incubus?! Utsuse, a humble salesman works vigilantly hoping to someday reach an inch closer to the ace of the company, Chief Togawa. However, the Chief suddenly transforms into an extreme sadist, possessed by an incubus. To save the Chief's life, "You must have sex" orders the incubus with the exact same attire of Chief Togawa. Sadist incubus persona, and the kind, Chief Togawa entangles Utsuse between bed sheets... the office, or anywhere before the magic wears out to eat Chief Togawa alive. A BL romance with a black magic twist. (Source: MangaPlaza)

Source: AniList