Ninamori

Daughter of the mayor of Mabase. She is a classmate of Naota and is depicted as intelligent, ambitious, and somewhat manipulative. Eri Ninamori is a 12-year-old girl who attends the same school as the protagonist, Naota Nandaba. She is the daughter of the mayor of Mabase, the town where the story takes place. Eri is a very popular girl, both in school and in the town, and is known for her beauty, intelligence, and ambition. However, she is also portrayed as being arrogant, manipulative, and selfish.

Throughout the series, Eri serves as a catalyst for many of the events that take place. She is initially presented as Naota's crush, but it is revealed that she is using him to get closer to his father, who is a renowned artist. Eri is shown to be jealous of her father's admiration for Naota's father, which is why she manipulates Naota into getting her closer to him.

Despite her initial antagonistic behavior, Eri becomes more sympathetic as the story progresses. It is revealed that she is under a lot of pressure from her father to excel academically and socially. She is also dealing with the stress of being a public figure in the town and having to maintain a certain image. As a result, Eri becomes more vulnerable and shows her true feelings to Naota.

Eri's character design is also worth noting. She is drawn in a very distinct style, with sharp features and a harsher color palette than the other characters. Her clothing and accessories are also very unique, with a focus on dark colors and intricate details. This design choice emphasizes Eri's edginess and rebellious nature, as well as her detachment from the rest of the characters.

In terms of her role in the story, Eri's actions play a significant part in the plot's development. She serves as a catalyst for the appearance of the Medical Mechanica plant, which threatens to destroy the town. Eri's manipulation of Naota is also a key factor in the story, as it leads to the revelation of several important plot points, including the true nature of the robot that emerges from Naota's forehead.

Appearance: Ninamori is a bit tall for her age, tall enough that Naota's pajamas are a little short for her. She has dark, blue-green eyes and purple hair. For the first half of the series, she wears her hair long and straight. At the end of the third episode, it is cut to chin-length, and she styles it with accessories or in short pigtails for the rest of the series. In her last scene in the final episode, her hair has grown longer and she wears it in braids. Ninamori wears different clothes in all of her appearances and has many outfits throughout the series.

Personality: Ninamori projects a proper, even slightly stuck-up personality, and conceals personal information to an almost obsessive degree; she does not even let her classmates know that she needs corrective lenses, instead wearing contacts while at school. Even with her class president status, however, Ninamori isn't above breaking the rules to get what she wants. She rigs the voting during the casting for the school play in order to get the lead role and have Naota cast opposite her, which hints at her crush on Naota. Other hints are her expressed dislike of Mamimi and Haruko, letting him see her wearing glasses, and a final scene with Naota by a vending machine.