Tenjouin, Asuka

天上院明日香

Yu-Gi-Oh! Duel Monsters GX
Asuka is the top female duelist at Duel Academy. She possesses a sharp eye for detail, reading every single move her opponents make. She compels her rivals to play their strongest cards, which makes her victories feel far more rewarding. She appears to have some interest (and possibly attraction) toward Judai.
As the smartest girl at the academy, Asuka attracts many boys; however, her personality is more focused on the game than on romance.
In the anime, Asuka uses a "Cyber Girl" deck, whereas in the manga she uses an "Ice" deck.

Spoiler

Yu-Gi-Oh! Arc-V
Asuka in this series is an alternate version of the same character from GX. She is a former student of Duel Academy in the Fusion Dimension who escaped from the island and co-founded You Show Duel School with Yusho Sakaki in the Fusion Dimension.