Habara

Habara is one of the main characters alongside Yanagin and Ikushima in the High School Girls are Funky side story. Her house is next to Toshiyuki's which usually Yanagin and Ikushima call him to ask him unreasonable questions. Back in the past, she is used to be known as the "Archdemon of the East Yada Elementary School" for her bloodlust personality in bullying the kids around her age.

Background
Habara used to be an unparalleled bully in her elementary school days. Back then, she used to be known as the "Archdemon of the East Yada Elementary". It is been said by Takahiro that all the high school boys around there start trembling only by hearing her name. It took all of the famous kids from 1st grade through 4th grade to take her down. Yanagin and Rubber Shooter were two of them. Only after the great battle the Archdemon of the East Yada Elementary (which ends in a draw) Habara gradually lost her brutality because of this. It is then known that she's very remorseful of what she did when she was young.

Personality
During her elementary school days, she is a brutal and a bloodlust person. It is shown in the Archdemon side story with the look on her face before the great showdown started. This is the main reason why she was called as Archdemon of the East Yada Elementary School when she was little.

However, this changes in the High School Girls are Funky side story, as Habara has relatively common sense, often to serve as the straight girl of numerous behavior of Ikushima and Yanagin performed. She is also seen an emotional person as she easily cries when her past is revealed by Yanagin in the Archdemon side story and also when she sees Toshiyuki's scar on his forehead giving him money and apologize to him.

Her brutal side still surfaces sometimes, particularly that one time when Yanagin proposed that all three of them fight it out to know who is the strongest. Apparently, she does not fight in a competitive sense but instead sees it as a fight to the death. Yanagin and Ikushima, much to their horror, realized this before Habara got an opportunity to bludgeon them with a huge rock.

She still retains her immense strength even in high school, demonstrating it by destroying the ball the three girls are playing with.

Relationships
At the beginning of Episode 12, Habara thinks Toshiyoki has feelings for her because of how he acts in front of her but it can be inferred that Toshiyoki is still scared of Habara because of what happened in his elementary days with Habara.