Miu Matsuoka  

Micchan, 松岡 美羽

In the story, there's a twelve-year-old girl named Miu who has a problematic personality. She lives next door to the Ito house, attends the same class as Chika, and is friends with her childhood friend. Miu enjoys saying random things out of nowhere and playing pranks on Matsuri and Ana. However, she often gets interrupted by Nobue (and sometimes Chika), causing her to lie down on the floor. Despite having little common sense or manners, Miu's unusual ideas and comments don't take her seriously. She appears to be jealous of Ana and Matsuri because Nobue finds them more adorable. Miu is known as "Micchan" in the story.