Naoka Ueno

Naoka was a classmate of Shoya Ishida, and in the same class that Shoko Nishimiya was transferred into. Although Shoya was not interested in girls in the sixth grade, nevertheless, Naoka always though of herself as his 'girlfriend'. She would look up to him, even though it was plain to everyone that he was a bully. When the bullying of Shoko began, Naoka joined right in, although what she did was mostly 'behind the scenes' to torment Shoko.

Later, as a senior in high school, she meets Shoko again. Naoka now works part time, as well as attending high school. However, she is a lonely, bitter, vengeful, and unloved teen. Her attitude towards Shoko is still the same, she dislikes her because Shoko 'stole' Shoya away from her. When the group of friends go to an amusement park, Naoka tags along. She invites Shoko to share a ride on the Ferris Wheel together. But when at the top of the ride, Naoka assaults Shoko verbally, as well as with an almighty slap to the face. At the hospital where Shoya is recovering from a fall from a third story balcony, Naoka again runs into Shoko, and not only berates her verbally, but physically assaults her and tries to impale her on a nearby chain link fence. She is stopped from doing so by an intervention by Shoko's mother.

Personality
Ueno is a rather blunt and straightforward person, being rude and frank to people she dislikes, especially to Shoko. She is also known to be somewhat rash with her decisions and will resort to violence rather quickly, as shown in chapter 44 when she assaults Shoko after her attempted suicide, which resulted in Shoya being injured.

She often shows remorse after these violent outbursts, and even admits to her actions, but is hesitant to change. Despite this, Ueno has shown a soft and sweet side toward the end of the manga, and can also become flustered relatively easily. It is also hinted more than once that she has a crush on Ishida, the main character and a childhood friend who assisted in the bullying of Shōko.

Appearance
Naoka is a pale-skinned teenage girl with straight mid-back length black hair with long bangs and dark blue eyes. She is normally seen in her school uniform: a traditional white and red sailor fuku uniform, along with a dark skirt and a tan school sweater. Ueno is also shown in her part-time job uniform, in which she wears glasses and ties up her hair as well as her bangs, making her unrecognizable to those who search for her in her workplace.