Ep. 121: Jack and Yuuya coordinate against Sanders and the Battle Beast in a high-stakes duel.
Aired on September 4, 2016

Jack assumes control of the duel after Gong sustains injuries, engaging in combat with Yuuya. The pair initiates a counteroffensive utilizing a synchronized strategy that pushes the Battle Beast into a precarious position. However, Sanders becomes increasingly agitated by their progress and abruptly interrupts the match. The conflict escalates as Jack and Yuuya rely on mutual trust to sustain their efforts, contrasting sharply with the brute force employed by Sanders and the Battle Beast to overpower their adversaries. The narrative focuses on the tension between strategic cooperation and raw power, leaving the final result of this intense Tag Duel uncertain as both sides clash with determination and aggression.
Episodes
- Ep. 117 · Yuugo and Rin reunite before Rin issues a duel challenge
- Ep. 118 · Lancers face a deadly survival duel against Academy students at the training facility.
- Ep. 119 · Shun Fights Alone to Save Controlled Sister Ruri from Darkness
- Ep. 120 · Yuuya and Noboru confront Battle Beast in the Jungle Field
- Ep. 121 · Jack and Yuuya coordinate against Sanders and the Battle Beast in a high-stakes duel.
- Ep. 122 · Jack and Yuuya face Battle Beast and Sanders in a continuing tag duel at the academy.
- Ep. 123 · Asuka battles Yuuri to protect Yuusho's path to the Professor at Duel Academy
- Ep. 124 · Yuuya encounters Ruri while searching for Yuzu, leading to an unexpected duel.
- Ep. 125 · Yuuya's Demonic Transformation Amidst the Parasite Monster Attack