15 years old. High school freshman. Female. A beautiful girl of mixed heritage. Wears glasses and has blonde hair in a bun. She tries her best to act like a genius, but she is a total klutz and an airhead at heart. Best friends with Miki. Because she was mocked as "Idiot Yu" until middle school, she decided to try her best in high school. She has a habit of ending her sentences with "dasu." She adds "-san" to food and inanimate objects. She loves Anpan-san. She loves cute-things-san. She loves fashion-san. She can just barely manage elementary school level problems. She absolutely hates studying-dasu.

15 years old. High school freshman. Female. A beauty with long black hair. She speaks cheerfully. She is Yu's best friend. She realized Yu was an idiot the moment she laid eyes on her. However, she respects Yu's feelings and tries to cover for her. She is serious, loyal, and a kind woman who would never betray a friend. Furthermore, Miki is a genuine genius. She is highly intelligent and has the ability to see through people's true natures and identify bad people. She can use this ability on everyone, including the protagonist.