Who are "Nikkei"?
Nikkei (日系) connotes a person or thing with a relationship with Japan. It typically refers to a person with roots in Japan who is removed by at least one generation. In this case, the person would be referred to as a NIkkei-jin (日系人) and would likely have their current citizenship denoted as in the case of a Nikkei-Amerikajin (American of Japanese Descent) (日系アメリカ人). In current times, the term Nikkei has a wider meaning and tends to incorporate those with even ancillary interests or relationship to Japan as well as things related to Japanese culture.