The daughter of the Oono Zaibatsu, Akira is rich, popular, and multi-talentedーthe virtual polar opposite of Haruo. However, in attempt to escape the strict educational regimen she faces at home, she sneaks away every so often to play in game centers where she showcases her exceptional gaming skills. She initially encounters Haruo during a match of Street Fighter II, and from then on bonds with him over their mutual love for gaming. She never talks, and communicates solely through gestures and facial expressions.

High Score Girl
The year is 1991, and arcade video games are the latest craze. Becoming a professional gamer is a far-fetched dream in an industry that has yet to spread its influence. Yet, that is the path sixth-grader Haruo Yaguchi wants to pursue. His aptitude for video games has earned him respect in local arcades and bestowed him with confidence and pride, both of which are shattered when fellow classmate Akira Oono easily defeats him in Street Fighter 2. Akira is rich, pretty, and smart—as close as can be to a perfect girl. But Haruo had never cared about these things as, despite his multiple shortcomings as a person, his supremacy in video games was, in his mind, undisputed. So, now that someone has appeared who can rival him, part of Haruo cannot help but loathe her. Another part, however, itches for somebody who can compete with him on equal terms, and Akira is more than capable.

High Score Girl II
Second season of High Score Girl.