Proper noun
Nakai (plural Nakais)
A surname.
Hiroaki Hirata put on a white ball cap and a plaid shirt to make a face at his co-worker Kazuyaa Nakai who voices Zoro. Source: Internet
Nakai Umenari, an acquaintance of Kanō's father and a former soldier, agreed to show him kata, but not to teach him. Source: Internet