Kosuke Anayama

Kosuke Anayama is Yukimura Sanada's  kagemusha (or shadow).

Appearance
She has blue hair and dresses like Yukimura (she is his shadow or kamemusha). She is very buxom and has lipstick.

Personality
She is a kind person and is very devoted to Yukimura.

Story
She belongs to the Sanada Jyuuyushi and she is also the female double of Yukimura.

Her main responsibility at the beginning is to remain in Kudoyama and take care of Sakuya.

Anime
In the anime, it is shown that she is in love with her master.