Aiko Ninomiya

Futaba's friend. Her birthday is September 22nd. She is in the 5th grade of elementary school and is 136 cm tall. She is in the same class as Futaba. A girl of her age who sometimes steals her mother's cosmetics. She has a girlish side that is thrilled by Futaba's cool aspects. She dislikes boys and cannot touch bugs or live fish, but she understands the hobby of fishing and tells Futaba that it's okay to do what she likes. She is proactive about the things she likes. She has come to want to be Futaba's best friend and feels uneasy seeing her getting along with Hiyori and other kids, which she confides in Koi, who finds her thoughts cute. Hearing about Yamashita's middle school entrance exams, she remembers that her brother, who is now a freshman in college, also took the middle school entrance exams, and she feels anxious about possibly having to separate from Futaba but was gently encouraged by her parents to consider paths other than entrance exams, and everything turned out fine.