City Hunter

Ryo refuses a job request from Saeko to protect young King Nalio from assassins. Ryo and Kaori discover that Nalio is a spoiled brat who has everyone do everything for him and who also has his own personal harem. Ryo only agrees to the job after seeking permission to the harem from Nalio's guardian. After an attack on Nalio, Ryo takes him to be properly "educated"