Worldwide, Naizen (Кано , Naizen ) is a very rare gender-neutral forename. More prevalently, Naizen is the last name as well as the forename.
Shigesato, 乃曾, 乃辛, 耐辛, and 迺辛
, Naizen 
) is a very rare gender-neutral forename. More prevalently, Naizen is the last name as well as the forename.