Emi Yusa is the heroine in Hataraku Maou-sama franchise.
As a little girl, she used to live with her father in Ente Isla until some men took her because she is half Angel and half human. When she visited her village, it was burned down to the ground by Satan's forces.
Emi Yusa is created by Satoshi Wagahara as a supporting character who has no inspiration or concept art used in her character design.
Emi Yusa is a beautiful, young woman with long, red hair and a light build body. She has a distinct ahoge and a single braided hair on her right side. She has yellow green eyes.
She is a diligent and honor bound. She tends to be a tsundere around Sadao and loses her composure a bit. She gets angry easily when Sadao pushes her buttons. As a demonstration of her being self conscious about her body, she expresses breast envy with Chiho.