Cognomen コサカイ (コサカイ ) , worldwide, is an extremely rare family name. Much more prevalently, コサカイ is the forename as well as the last name.
Kosakai
ミズキ, トオル, エイイチロウ, and リョウコ
) , worldwide, is an extremely rare family name. Much more prevalently, コサカイ is the forename as well as the last name.