Kinpatsu Obocchama to Nihonjin Shitsuji

The 9-year-old boy, who lives in a mansion surrounded by servants, is interested in Tanaka, who is the only Asian. He says that it is rare for him to come from Japan, the country of NINJA. One day, the boy barges into the servant's room and falls in love upon seeing Tanaka with messy hair. Later, at the request of the boy, Tanaka became an exclusive caretaker. Shota vs natural love romance begins!

(Source: Ichijinsha, translated)