Yassan

Yassan (やっさん Yassan), otherwise known as Literary Girl, is a second-year student at Sanada West High who is smitten with Hidenori.

Appearance
Yassan has a slim figure and is of average height. She has long dark violet hair reaching her waist. She is usually seen wearing the West High uniform, sometimes with the school coat.

Personality
From what has been seen, Yassan is a hopeful romantic, having written a book with "a boy-meets-girl scenario near a riverbank" and going to the riverbank herself in the hope that she'd be able to experience something similar.

She shows an aggressive side to her, as she quickly beat up Tadakuni for not catching on to her trying to live out a romantic scenario. This is shown again when she jealously chases away a classmate who was sitting at the riverbank with Hidenori.

Her strong interest in Hidenori sometimes leads her to extreme courses of action, like chasing him on sight (much to his annoyance).

Relationship with Hidenori
She makes her first appearance in High School Boys and Literary Girl where she pesters Hidenori at the river bank. She seems to always go there, knowing Hidenori is usually found there, to have what he calls "a boy-meets-girl scenario near a river bank". It appears that she has taken a romantic interest in Hidenori, due to the fact that she always blushes when meeting him and there being a time when Hidenori caught her walking with a classmate and she chased him all around town to the bridge just to tell him that they were just friends, so he wouldn't get the wrong idea. This is shown again when she chases away an acquaintance in jealousy who was sitting at the riverbank with Hidenori. At the end of the anime, after graduating from their schools, Hidenori and Yassan meet each other at the riverbank. Unlike their previous meetings, they are calm and composed with both even quoting lines involving seizing the wind, and Hidenori ending it by saying "Let us make haste, lest the wind ceases". It appears that they get together, as Hidenori reaches his hand out for Yassan who smiles and blushes as she takes it.

In the manga, Hidenori keeps meeting Yassan in different locations like in the movies, in an elevator, the cultural festival, etc., resulting in more awkward encounters for both of them.

Trivia

 * Her real name remains technically unknown. All her acquaintances call her 'Yassan'. A certain 'Yasunaga-chan' mentioned in HSGF-16 could refer to her.