Commonly called Chiyo-chan.
The 10 year old child prodigy who skipped grades from elementary school and admitted into high school.

Source:Wikipedia

Commonly known as 'Yomi', her name was left unknown until the second volume, in which Azuma dedicated an entire strip to her in response to readers asking for her name.

Source:WIkipedia

An all-rounder in sports; she belongs to the swimming club.
She joins the girls' class after her second year.
Like Sakaki, she is another character whose full name isn't revealed and is known only as Kagura.

Source:Wikipedia

The Physical Education teacher and the advisor for the school's swimming club.

Source:Wikipedia JP

The Form Teacher, who is also in charge of the English subject.

Source:Wikipedia JP

Wing debuts during the 'Heaven Arena(天空闘技場) Arc' in the anime.

Source:Wikipedia

One of the main protagonists of the series.

He is one of Moritaka's classmates. After discovering Mashiro's talent as an artist, he proposes that they publish a manga together. Later on, both work under the shared pen name "Muto Ashirogi".
Akito is often known as Shujin (シュージン).

Source:Wikipedia

Voiced by: Atsushi Abe .
In the flash web-comic, he is voiced by Jun Fukuyama.

The main protagonist of the story, who is otherwise known as Saikō(サイコー); an alternative reading of his name 'Moritaka'(最高).
Together with Akito, they strive to realize their dreams in the manga world.
Both work under the shared pen name "Muto Ashirogi".

Source:Wikipedia

A rare female manga artist in "WJ", who is AKA Aoki Ko(蒼樹 紅), her real name is in fact Aoki Yuriko. In the storyline, she is introduced as a 20 year old.

Source:Wikipedia JP

The mother of Azuki Miho, who bears similar resemblance to her. She shares a history with Nobuhiro in the story.

Source:Wikipedia JP