Family name コサイ (コサイ ) , throughout the world, is an extremely rare last name. Much more prevalently, コサイ is the forename as well as the last name.
Kosai
アツシ, アヤカ, and ミサキ
) , throughout the world, is an extremely rare last name. Much more prevalently, コサイ is the forename as well as the last name.