As the word “ko” means young and cute and “omote” means a face, the Ko-omote mask portrays a young woman of 16 to 20 years old. Of several kinds of the Female Masks, the Ko-omote mask is the prettiest. Its full cheeks and broad forehead express naïve innocence of a young woman. In general, the Female Masks have an “intermediate countenance,” which means they look either frowning or smiling depending on delicate movements of the actor.

Fascinated by Noh plays, Toyotomi Hideyoshi ordered Tatsuemon, a sculptor specializing in Noh masks, to make three Ko-omote masks, which were named “Flower,” “Moon,” and “Snow.” Presently, “Flower” is possessed by the Mitsui family, “Snow” by the Kongo family in Kyoto, and “Moon” is unlocated.

The Ko-omote mask is used for the plays such as “Tohoku,” “Izutsu,” “Hajitomi,” “Momiji,” and “Yuya.”