The title "Hokentai Ku" typically refers to "Health and Physical Education" or "Physical Examination" themes. In this specific video, the actress plays a character undergoing or facilitating a simulated physical examination/health check-up.
The popularity of Japanese adult entertainment worldwide has also led to increased interest in the country's culture, language, and customs. Many fans of hentai and other forms of Japanese adult content have gone on to learn more about Japan's history, try traditional cuisine, and even visit the country to experience its vibrant culture firsthand.
"Ami ami" refers to the character or the specific title of the release.