Kotegawa Yui

• Also known as

Kotegawa Yui is a classmate of the main character Yuuki Rito. She tries to enforce strict propriety and morality in the school. She believes Rito and Lala Satalin Deviluke are the worst offenders in the school. As is typical for a harem manga, she eventually see Rito's good qualities and reluctantly develops romantic feelings for him.