Read Nureta Ouha Senyaichiya No Yume wo Miru Manga:
"Hotel doorman x Arab king, and a half-remembered past..."
After catching the eye of Arab hotel magnate Azam, doorman Tokio has to live with him in his suite. Swayed by a domineering attitude & sudden kisses, Tokio can't help but find Azam's 'dere' side cute. But their relationship seems to go way back, a fact Tokio can't remember...