Sly

Sly is a student at the New Domino City Duel Academy.

Biography
Sly is one of the many students of the Academy. Though he is more of the solitary type, he sometimes hangs around with his classmates, Leo, Luna, Dexter, Bob and Patty, but Luna seems to interact with him more than the others do.

Sly shows a high interest in Yusei Fudo's "Stardust Dragon" while helping to pick up Yusei's cards.

Like the other students, he was going to be expelled from the Duel Academy by the teacher Rudolph Heitmann, until Yusei challenged the instructor to prevent this. After Yusei defeats Rudolph Heitmann in a Duel, ensuring that the students don't get expelled, Sly vows that he must obtain "Stardust Dragon". However, he is never shown to act upon this statement.

Despite his dislike for both Yusei and Jack, Sly appears in the stands with Bob, Patty, Dexter and Trudge, during the World Racing Grand Prix.

He doesn't seem to get along with Leo, which is seen when the two got into a fight about Jack's innocence.

During Yusei's duel with Z-ONE, he is seen cheering Yusei on. It is likely that Sly had a slight change of heart after hearing Z-One's revelation of how the Ener-D system reacts to the negative elements of a person's heart. It can be safe to say that he was a much better person after the Ark Cradle incident was averted.

Deck
The only known card belonging to him is "Eccentric Boy".