Bed no Naka de wa Sekaiichi Aishite

At the seven-star Whittaker Hotel is a special suite with intimate services especially for its guests. Chief concierge Kashiro is a gentleman in the daytime, but a lustful leader in the bedroom who only provides his services to guests once. When young CEO Haruki stays at the suite, he discovers the intimate services the staff at the hotel provide. Although irritated by Kashiro's behavior, Haruki is somehow drawn to him.

(Source: Renta!)