Yoshida Yuko

Yuko is very polite and well-mannered, as seen in both the manga and anime adaptation. She always speaks formally, and is generally a kind person. Despite her awakening as a demon, Yuko is still friendly and compassionate. This is shown very often, such as when Momo gets sick and Yuko tends to her despite claiming Momo as her enemy. She is also rather emotional, getting overly excited or easily upset about simple things.

Yuko is a firm optimist, always trying to see the best in people and the world. Despite the hardships she's faced, such as her sickly childhood and difficult living situation due to the curse on her family, she continues to push on and holds no malice towards anyone, always striving to achieve the best outcome for everyone no matter the situation. Due to her sheltered childhood, Yuko is rather naive to the world, although she is actually quite wise when it comes to familiar subjects.

While physically weak, Yuko has an incredibly strong will, showing an unshakable resolve in the face of crisis and a refusal to give up. When her family or friends are in trouble she'll rush to their aid and do all in her power to help. However, as a result of her constant childhood sickness Yuko has developed a fear of being a burden to others, driving her to work hard even to a self-sacrificial degree.