Asuka (アスカ Asuka) is a student at the Heartland Academy in Yu-Gi-Oh! ZEXAL.
Asuka is a fair-skinned girl with olive eyes, and bob-cut dull brown hair with thick swept bangs (which cover her right eye) and two cowlicks.
She is usually seen with the first-year female uniform. She has a casual outfit consisting of a gold tag necklace, a black shirt under a beige short-sleeved coat, daisy dukes, black thigh-highs, and brown boots.
Asuka is occasionally seen around the academy, often in company of Aki and Yuki.
Shortly after the end of the World Duel Carnival preliminaries, the trio was discussing about how two of their schoolmates qualified for the finals while walking to the academy. Yuki commented that Reginald Kastle was a given, but the other was unexpected (in the dub, she says "and that really clumsy kid too" instead). Asuka agreed, before wondering what was his name again, stating that he had a catchphrase (in the dub, she did remember the name, and asked what the catchphrase was). All three pondered about it for a moment (the dub cuts this part, instead interrupting Asuka as she's about to try to guess), just before Yuma suddenly jumped from the top the stairs the trio was descending, yelling "Kattobing!" (in the dub, "Watch out 'cause I'm feeling the flow!"), lost his balance, and painfully landed face-first just behind the girls, startling them. However, he immediately got up, holding a pen, and asked them if they wanted an autograph, before he ran off proposing it to the other students nearby.
All three girls witnessed the World Duel Carnival finals from the Duel Coaster Stadium's stands, sitting just under the Super Secret Number Card Investigation Club.