Sugoroku's friend is an unnamed character in the Yu-Gi-Oh! manga.
Sugoroku Mutou's friend is a gamer from America. Kazuki Takahashi has hinted that he might have been acquainted with Maximillion J. Pegasus and acquired the "Blue-Eyes White Dragon" card from him.
- ↑ 1.0 1.1 Yu-Gi-Oh! Duel 9: "The Cards with Teeth (Part 1)"
- ↑ Takahashi, Kazuki (2002). "Chapter 7: Kazuki Takahashi Super Long Interview" (in Japanese). Yu-Gi-Oh! Character Guidebook: The Gospel of Truth. Shueisha. p. 274. ISBN 4-08-873363-0.