Back to the Front, Yu-Gi-Oh! Wiki

Back to the Front YuGiOh! Duel Links - GameA

Now You See Them - Yugipedia - Yu-Gi-Oh! wiki

Yu-Gi-Oh! - Wikipedia

Yuya Sakaki, Yu-Gi-Oh! Wiki

Back to the Front (Master Duel) - Yugipedia - Yu-Gi-Oh! wiki

Back to the Front, Yu-Gi-Oh! Wiki

Yu-Gi-Oh! TRADING CARD GAME – Official Website

Duel Runner, Yu-Gi-Oh! Wiki, Fandom

apparently the YGO wiki say the three protagonist have a theme of, yu gi oh 5ds wiki

Back to the Front - Yu-Gi-Oh! Card Database - YGOPRODeck

Yu-Gi-Oh! Trading Card Game SDAZ-EN036 Back to the Front, 1st Edition

Yu-Gi-Oh! - Wikipedia

Card Gallery:Right Arm of the Forbidden One, Yu-Gi-Oh! Wiki

Ninja - Yugipedia - Yu-Gi-Oh! wiki